BKDR_ZZPEG.SM
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Backdoor
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This backdoor may be hosted on a website and run when a user accesses the said website.
TECHNICAL DETAILS
Arrival Details
This backdoor may be hosted on a website and run when a user accesses the said website.
NOTES:
This is Trend Micro's detection for .JPEG files with malicious script embedded on the file's EXIF Header.
A component malwarel uses the embedded code on the JPEG to execute an HTTP POST command with the data "zz1".
The embedded code can be found on the Camera Make and Camera Model of the Header.
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product to delete files detected as BKDR_ZZPEG.SM. 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.
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