1. Symantec/
  2. Security Response/
  3. Backdoor.IRC.Zcrew


Risk Level 1: Very Low

February 13, 2003
February 13, 2007 11:43:02 AM
Also Known As:
IRC/Flood.bi [McAfee], Backdoor.IRC.Zcrew [Kaspersky
Trojan Horse
Systems Affected:

Backdoor.IRC.Zcrew is a backdoor Trojan Horse that is similar to other backdoor IRC Trojans, such as Backdoor.IRC.Aladinz and Backdoor.IRC.Flood.

Backdoor.IRC.Zcrew is written as an IRC script and uses the mIRC client to connect to the Internet, where it notifies the attacker of its presence. The hacker can send various commands to an infected computer and take full control over it.

An infected computer can also be used to launch a ping flood attack against another computer at a specified IP address.

Antivirus Protection Dates

  • Initial Rapid Release version February 14, 2003
  • Latest Rapid Release version November 1, 2017 revision 033
  • Initial Daily Certified version February 14, 2003
  • Latest Daily Certified version November 28, 2017 revision 022
  • Initial Weekly Certified release date February 19, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Jason Pan

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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