TROJ_UPATRE.BD
W32/Trojan3.GHR (Authentium), Trojan-Spy.Zbot;Trojan-PWS.Win32.Fareit (Ikarus)
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: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Spammed via email, Downloaded from the Internet
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
It deletes the initially executed copy of itself.
TECHNICAL DETAILS
24,064 bytes
EXE
No
23 Oct 2013
Downloads files
Arrival Details
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan drops the following copies of itself into the affected system and executes them:
- %User Temp\hhcbrnaff.exe
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- https://{BLOCKED}radingguidelines.com/wp-content/uploads/2011/09/images-1.exe
It saves the files it downloads using the following names:
- %User Temp%\hhgnrddkjee.exe - detected as TSPY_ZBOT.VNO
(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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
Other Details
This Trojan deletes the initially executed copy of itself
SOLUTION
9.300
10.362.01
23 Oct 2013
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
Restart in Safe Mode
Step 3
Remove the malware/grayware file dropped/downloaded by TROJ_UPATRE.BD
- TSPY_ZBOT.VNO
Step 4
Search and delete this file
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_UPATRE.BD. 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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