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Aliases: HTML/Ransom.A trojan (NOD32)
Malware type: Trojan
Destructive: No
Platform: Windows 2000, Windows XP, Windows Server 2003
Encrypted: No
In the wild: Yes


Infection Channel: Downloaded from the Internet

This is an HTML file that displays a ransom message.

This Trojan may be downloaded by other malware/grayware from remote sites.

Technical Details

File size: 5,077 bytes
File type: HTML, HTM
Initial samples received date: 28 Sep 2012
Payload: Displays message

Arrival Details

This Trojan may be downloaded by the following malware/grayware from remote sites:


It may be downloaded from the following remote site(s):

  • http://{random characters}.{BLOCKED}


This is an HTML file that displays the following:


Minimum scan engine: 9.200
First VSAPI Pattern File: 9.428.07
First VSAPI Pattern Release Date: 29 Sep 2012
VSAPI OPR Pattern Version: 9.429.00
VSAPI OPR Pattern Release Date: 29 Sep 2012

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

Remove the malware/grayware file that dropped/downloaded HTML_RANSOM.CMY

Step 3

Scan your computer with your Trend Micro product to delete files detected as HTML_RANSOM.CMY. 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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Analysis By: Christopher Daniel So

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