W32/Agobot-HC

Category: Viruses and Spyware
Type: Win32 worm
Prevalence: Small Number of Reports

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W32/Agobot-HC is an IRC backdoor Trojan and network worm.

W32/Agobot-HC is capable of spreading to computers on the local network protected by weak passwords.

When first run W32/Agobot-HC copies itself to the Windows system folder as csrss32.exe and creates the following registry entries to run itself on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Service = csrss32.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\Microsoft Update Service = csrss32.exe

Each time W32/Agobot-HC is run it attempts to connect to a remote IRC server and join a specific channel.

W32/Agobot-HC then runs continuously in the background, allowing a remote intruder to access and control the computer via IRC channels.

W32/Agobot-HC attempts to terminate and disable various anti-virus and security-related programs.