Mitglieder is a trojan that functions as an email relay. The trojan kills tasks of several programs and reports certain info to its creators. Bagle worm has the functionality to download and activate this trojan from a website.
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 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.
When run, the trojan installs itself to system. It copies its file as SYSTEM.EXE to Windows System directory and creates the following entry in the System Registry:
[HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] "ssgrate.exe" = "%winsysdir%\system.exe"
where %winsysdir% is the name of Windows System directory.
The trojan also creates another entry in the Registry where it stores its internal variables.
Then the trojan starts a thread that accesses 15 different websites and opens a PHP page there with certain parameters. This way the trojan reports its ID, proxy port and IP of infected computers to its authors.
After that trojan starts a thread that terminates processes with the following names:
ATUPDATER.EXE AVWUPD32.EXE AVPUPD.EXE LUALL.EXE DRWEBUPW.EXE ICSSUPPNT.EXE ICSUPP95.EXE UPDATE.EXE NUPGRADE.EXE ATUPDATER.EXE AUPDATE.EXE AUTODOWN.EXE AUTOTRACE.EXE AUTOUPDATE.EXE AVXQUAR.EXE CFIAUDIT.EXE MCUPDATE.EXE NUPGRADE.EXE
The trojan has 3 links in its body that point to a data stealing trojan that is located on 3 different websites. This trojan is detected as 'Trojan.PSW.Ldpinch.as'. The infected files have been recently removed from those website already.
The trojan has a mail relay that functions on the certain port (in the sample we got the port number is 39999).