Backdoor:W32/SDBot.MB allows a remote attacker to control the infected machine by sending specific commands via IRC channels.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
CAUTION Manual disinfection is a risky process; it is recommended only for advanced users.
Manual disinfection for SdBot.MB requires renaming of an infected file named SNDCFG16.EXE located in Windows System folder and restarting a system. Please note that the backdoor's file has read-only, system and hidden attributes, so Windows Explorer has to be configured to show such files.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note You need administrative rights to change the settings.
This backdoor steals registration codes of popular games and can work as a keylogger. It can also steal data, spread to local network and to computers vulnerable to exploits.
This SDBot variant was first found on May 12th, 2004 in Finland.
The backdoor's file is a PE executable about 93 kilobytes long, packed with Yoda and PECompact file compressors. When the backdoor's file is started, it copies itself as SNDCFG16.EXE to Windows System folder, and sets hidden, system and read-only attributes for itself.
The backdoor creates a number of registry keys. It will also monitor the registry for changes and recreate these keys if they are deleted or modified.
SDBot.MB kills the processes of security and anti-virus software and also processes of certain malware (for example Bagle). Processes with the following names are killed:
The backdoor can scan for vulnerable computers using different types of exploits and tries to locate other backdoors installed on remote hosts. Here's the list of scanner capabilities:
The backdoor starts IDENTD server on port 113. A hacker can control the backdoor via a bot that it creates in a certain IRC channel. Backdoor capabilities are the following:
SDBot.MB steals CD keys for the following games if they are installed on an infected computer:
Also the backdoor steals the Microsoft Windows Product ID.