Threat Encyclopedia

HTML_DLOADR.ARM

Malware type: Html

Aliases: No Alias Found

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 98, ME, NT, 2000, XP, Server 2003

Encrypted: No

Overall risk rating:

Reported infections:

Damage potential:

High

Distribution potential:

Low

Description: 

This HyperText Markup Language (HTML) may be downloaded from certain remote sites. It may be hosted on a Web site and run when a user accesses the said Web site.

It accesses Web sites to download file(s). Trend Micro detects the said file as BKDR_IRCBOT.BW. As a result, malicious routines of the downloaded backdoor are exhibited on the affected system.

For additional information about this threat, see:

Description created: Jun. 29, 2009 2:45:28 PM GMT -0800


TECHNICAL DETAILS


File type: Script

Size of malware: 1,549 Bytes

Initial samples received on: Jun 28, 2009

Payload 1: Downloads files

Details:

This HyperText Markup Language (HTML) may be downloaded from the following remote site(s):

  • http://{BLOCKED}51.com/openbb/avatars/imagen/CNN/indexx.php

It may be hosted on a Web site and run when a user accesses the said Web site.

It accesses Web sites to download the following file(s):

  • http://{BLOCKED}51.com/openbb/avatars/imagen/CNN/Flash-Installer-Windows.exe - detected as BKDR_IRCBOT.BW

As a result, malicious routines of the downloaded backdoor are exhibited on the affected system.

It runs on Windows 98, ME, NT, 2000, XP, and Server 2003.

Analysis By: Jessa De La Torre


SOLUTION


Minimum scan engine version needed: 8.700


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

 Step 1: Close all opened browser windows

 Step 2: Scan your computer with your Trend Micro product to delete files detected as HTML_DLOADR.ARM and BKDR_IRCBOT.BW

*Note: 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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