Backdoor:W32/SdBot.CKF is a backdoor. Backdoors are remote administration utilities that open infected machines to external control via the Internet or a local network. Upon execution, SdBot.CKF will attempt to connect to an IRC server and tries to download additional malware to the infected machine.
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.
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 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.
Upon execution, SdBot.CKF will create a copy of itself in the following location:
It creates the following registry entry to automatically start with Windows:
Once the backdoor is active, it connects to an IRC server, joins a certain channel and acts as a bot. The backdoor will try to contact the following IRC server:
Then it joins the following channels:
The malware attempts to download from the following locations:
The files are detected as follows:
Here are more commands used by the bot:
Furthermore, another sign of infection from this malware is an outbound connection to http.xn--mg-kka.com.