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TROJ_DLOADR.TAN
Malware type: Trojan
Destructive: No
Platform: Windows 98, ME, NT, 2000, XP, Server 2003
In the wild: Yes

Overview


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

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Technical Details


File size: 1,171,456 bytes
File type: EXE
Memory resident: No
Initial samples received date: 30 Jul 2010

Arrival Details

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

  • TROJ_DLOAD.QWK

Dropping Routine

This Trojan drops the following files:

  • %Desktop%\Streaming Music - MediaPass.lnk

(Note: %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.)

It drops the following files:

  • %System%\{random filename}.dll - detected as ADW_TANGO

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

Other Details

Based on analysis of the codes, it has the following capabilities:

  • Connects to the online music streaming website http://www.grooveshark.com

Solution


Minimum scan engine: 8.900

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 malware files dropped/downloaded by TROJ_DLOADR.TAN

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DLOADR.TAN. 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: Kathleen Notario

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