Trojan.Win32.Zapchast.pbs (Kaspersky); W32/Zapchast.PBS!tr (Fortinet)
Windows 2000, Windows XP, Windows Server 2003
This backdoor may be dropped by other malware.
It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.
This backdoor may be dropped by the following malware:
This backdoor adds the following processes:
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
This backdoor executes the following commands from a remote malicious user:
It connects to the following websites to send and receive information:
It also connects to the mentioned URL to report system infection and send system information such as:
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Remove the malware/grayware file that dropped/downloaded BKDR_ZAPCHAST.QZ
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_ZAPCHAST.QZ. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.