JS_DLOADR.AU
TrojanDownloader:JS/Qakbot.F (Microsoft)
Windows 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
TECHNICAL DETAILS
6,126 bytes
Script
No
22 Nov 2010
Downloads files
Download Routine
This Trojan accesses the following websites to download files:
- http://{BLOCKED}rv.co.in/1
- http://{BLOCKED}rv.co.in/21
- http://{BLOCKED}1.co.in/1
- http://{BLOCKED}1.co.in/21
- http://{BLOCKED}2.co.in/1
- http://{BLOCKED}2.co.in/21
- http://{BLOCKED}3.in/1
- http://{BLOCKED}3.in/21
- http://{BLOCKED}3.com.ua/1
- http://{BLOCKED}3.com.ua/21
It saves the files it downloads using the following names:
- %User Temp%\S8XzxA.exe
- %User Temp%\OUlEB.dll
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)
Trend Micro detects the dowloaded file as:
- BKDR_QAKBOT.SME
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
SOLUTION
8.900
7.640.10
22 Nov 2010
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 JS_DLOADR.AU
- BKDR_QAKBOT.SME
Step 3
Scan your computer with your Trend Micro product to delete files detected as JS_DLOADR.AU. 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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