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Backdoor:Win32/Mocbot.AF
Updated on Nov 24, 2008
Backdoor:Win32/Mocbot.AF is an IRC trojan that connects to an IRC channel and awaits commands from remote attackers. When instructed, Backdoor:Win32/Mocbot.AF begins searching the local network for systems which have not yet applied the Microsoft Windows Server service security patch described in Microsoft Security Bulletin MS08-067. The trojan also includes the ability to send messages via AOL Instant Messenger (AIM) and ICQ.
Backdoor:Win32/Mocbot.AF may lower security settings on infected systems and allows the system to be used for nefarious purposes, such as launching a denial of service (DoS) attack against others. Backdoor:Win32/Mocbot.AF includes the ability to download other files, thus the trojan could update its functionality or download additional malicious software to infected systems.
Microsoft strongly recommends that users apply the update referred to in Security Bulletin MS08-067 immediately.
Alert level:
severe