PE_ZMISTx
Windows 2000, XP, Server 2003

Threat Type: File infector
Destructiveness: No
Encrypted:
In the wild: Yes
TECHNICAL DETAILS
NOTES:
This is a type of metamorphic virus that infects Win32 files. This virus disassembles the host file and integrates itself between the target file’s codes. This virus then rebuilds the codes that results into a new executable file.
SOLUTION
Step 1
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.
Step 2
Identify and delete files detected as PE_ZMISTx using either the Startup Disk or Recovery Console
Step 3
Restore files from backup Only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on your computer again.
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