W32/Rbot-AQJ is a worm with IRC backdoor functionality for the Windows platform.
W32/Rbot-AQJ can spread to remote network shares and SQL servers protected by weak passwords and to computers vulnerable to common exploits, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812).
W32/Rbot-AQJ runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
When first run W32/Rbot-AQJ copies itself to <Windows system folder>\WinOcx.exe.
The following registry entries are created to run WinOcx.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
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WinOcx.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
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WinOcx.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
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WinOcx.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
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WinOcx.exe
Registry entries are set as follows:
HKCU\SYSTEM\CurrentControlSet\Control\Lsa
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WinOcx.exe
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
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WinOcx.exe
HKCU\Software\Microsoft\OLE
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WinOcx.exe
HKLM\SOFTWARE\Microsoft\Ole
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WinOcx.exe
Sophos's anti-virus products include Genotype™ detection technology, which can proactively protect against new threats without requiring an update. Sophos customers have been protected against W32/Rbot-AQJ (detected as W32/Rbot-Fam) since version 3.93