Email-Worm:​W32/Zhelatin.TQ

Threat description

Details

CATEGORYMalware
TYPEWorm, Email-Worm

Summary

Zhelatin.TQ, like its predecessors, is a bot that communicates via Overnet P2P protocol and is mainly used to send spam.



Removal

Automatic action

Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

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Technical Details

Zhelatin.TQ does the following upon initial installation:

  • Disables Windows File Protection
  • Drops its rootkit component%SystemDirectory%\diperto[random]-[random].sys
  • Drops its configuration file%SystemDirectory%\diperto.ini
  • Exits the current process

To enable execution of startup, the loader component will create a Windows service to automatically execute the driver on next reboot resulting in the addition of the following registry keys / sub keys in:

  • HKLM\System\CurrentControlSet\Services\diperto[random]-[random]

The malware then tries to communicate with the other peers via the Overnet P2P protocol on how to proceed. It is basically downloading other component/configuration details via the P2P network. The malware has the ability to do the following:

  • Harvest e-mail addresses but avoid those that contain certain strings
  • Download messages to be used in spam
  • Send spam e-mails

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