TROJ_EXELDROP.A
Windows 98, ME, NT, 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It bears the file icons of certain applications to avoid easy detection and consequent removal. It uses common file icons to trick a user into thinking that the files are legitimate.
TECHNICAL DETAILS
Arrival Details
This Trojan 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 bears the file icons of the following applications:
- Microsoft Excel
It uses common file icons to trick a user into thinking that the files are legitimate.
Dropping Routine
This Trojan drops the following files:
- %System%\googletoolbar32.exe - detected as TROJ_FAKEAV.FAS
(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.)
SOLUTION
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_EXELDROP.A
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_EXELDROP.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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