Classification

Category :

Malware

Type :

-

Aliases :

Desex, DDoS.Win32.Desex.a

Summary

Desex is a DDoS (Distributed Denial of Service) trojan. It can perform a DoS attack on certain servers on Internet. The trojan can be hiddenly dropped to users' computers and then used to perform a DoS attack.

Removal

To get rid of the trojan it's enough to delete its file from an infected computer.

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.

Technical Details

The trojan is written in Visual C++ and its file is packed with UPX file compressor. The packed executable size is 6656 bytes, the unpacked length is 9216 bytes.

Desex trojan attacks the following 3 servers:

212.7.144.70
193.219.15.17
212.7.128.165

To attack these servers the trojan uses certain functions from WS2_32.DLL library:

WSAStartup
htons
inet_addr
socket
sendto
WSACleanup

The trojan contains the following text strings:

sex
de

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