Sophos

W32/Agobot-BT

Aliases
  • W32.HLLW.Gaobot.gen
Category
Type
What to do
Prevalence low high

Summary

 
Included in our products from February 2004 (3.78)
Protection available since 30 December 2003 11:30:49 (GMT)
Detected by All Sophos products

Action

More Information

W32/Agobot-BT is a network worm which also allows unauthorised remote access to the computer via IRC channels.

W32/Agobot-BT copies itself to network shares with weak passwords and attempts to spread to computers using the DCOM RPC and the RPC locator vulnerabilities.

These vulnerabilities allow the worm to execute its code on target computers with System level privileges. For further information on these vulnerabilities and for details on how to protect/patch the computer against such attacks please see Microsoft security bulletins MS03-001 and MS03-026. MS03-026 has been superseded by Microsoft security bulletin MS03-039.

W32/Agobot-BT copies itself to the Windows system folder as sysinfo.exe and creates the following registry entries to run itself on system restart:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Configuration Loader

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Configuration Loader

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

W32/Agobot-BT attempts to terminate various processes related to anti-virus and security software (e.g. SWEEP95.EXE, BLACKICE.EXE and ZONEALARM.EXE).

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