Trojan Horses Definitions(r) - RBot.msaol32

RBot.msaol32

Category: Trojan

Risk: Severe Risk

* Severe threats typically are remotely exploitable vulnerabilities, which can lead to system compromise. Successful exploitation does not normally require any interaction and exploits are in the wild. There exists a high possibility of potential system damage or security flaw. Attacker has complete control over your computer or install new software on your machine.

Description: RBot.msaol32 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. RBot.msaol32 spreads to network shares with weak passwords and also by using the exploits for the security vulnerabilities in Windows described in Microsoft security bulletins MS04-011 and MS03-039. When first run RBot.msaol32 moves itself to \msaol32.exe. The following registry entries are created to run MSAOL32.exe on startup: HKLM\Software\Microsoft\Windows\CurrentVersion\RunMicrosoft AOL Instant Messenger MSAOL32.exe HKLM\Software\Microsoft\Windows\CurrentVersion\RunServicesMicrosoft AOL Instant Messenger MSAOL32.exe HKCU\Software\Microsoft\Windows\CurrentVersion\RunMicrosoft AOL Instant Messenger MSAOL32.exe Once installed, RBot.msaol32 will attempt to perform the following actions when instructed to do so by a remote attacker: setup a FTP server create a SOCKS4 server terminate threads and processes perform port scanning on IP addresses steal computer system hardware information capture keystrokes copy itself to IPC$ network shared folders download files from the Internet and run them participate in denial of service (DoS) attacks

Alias: W32/Rbot-ABB

Signatures:
process: msaol32.exe: MD5 Hash: e316f7f6c7529de5275
process: msaol32.exe: MD5 Hash: 45101c062c5ebaefe69
process: msaol32.exe: MD5 Hash: 9a36ff7c76644d11c1c
process: msaol32.exe: MD5 Hash: 4631f0dea4ba2c2b84f
process: MSAOL32.exe: MD5 Hash: 9bf15097e1f62fcd9f1..

Updated: 02/17/2006
Copyright @2006 THR Computer Solutions: RBot.msaol32