TROJ_EMVIBS.A
Trojan-Downloader.MSWord.Agent.aib (Kaspersky)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It modifies the Internet Explorer Zone Settings.
TECHNICAL DETAILS
26,112 bytes
DOC
26 May 2016
Arrival Details
This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
Installation
This Trojan drops the following files:
- %Temporary Internet Files%\{random folder}\{random folder}\{embedded file}.vbs
(Note: %Temporary Internet Files% is the Temporary Internet Files folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), and Windows Server 2008; C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), and Windows Server 2012.)
Web Browser Home Page and Search Page Modification
This Trojan modifies the Internet Explorer Zone Settings.
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}.{BLOCKED}.63.7/subid3.jpg?DKC=11
- http://{BLOCKED}s.{BLOCKED}lformats.org/drawingml/2006/main
NOTES:
Document file embedded with VBS script that when user activates, it may exhibit possibly malicious activities.
SOLUTION
9.800
12.552.07
27 May 2016
12.553.00
28 May 2016
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete this file
- %Temporary Internet Files%\{random folder}\{random folder}\{embedded file}.vbs
Step 4
Reset Internet privacy settings
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_EMVIBS.A. 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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