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Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 1 December 2004 09:08:53 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Rbot-QY is a network worm which attempts to spread via network shares. The worm contains backdoor functions that allows unauthorised remote access to the infected computer via IRC channels while running in the background.
The worm spreads to network shares with weak passwords and also by using the LSASS security exploit (MS04-011), RPC-DCOM security exploit (MS03-039) and the WebDav security exploit (MS03-007).
When run W32/Rbot-QY moves itself to the Windows System folder as a hidden, read-only, system file named msdev.exe.
The worm then creates the following registry entries to run itself on computer logon:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Sygate Personal Firewall Startup
msdev.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
Sygate Personal Firewall Startup
msdev.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Sygate Personal Firewall Startup
msdev.exe
Once installed, W32/Rbot-QY will attempt to partake in distributed denial-of-service (DDoS) attacks, download and run files from the internet, steal CD keys, log keystrokes and create a SOCKS4 server when instructed to do so by a remote attacker.
The worm may also try to exploit backdoors and vulnerabilites used by the MyDoom family of worms.
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