TROJ_TOONCOM.I
TrojanDownloader:Win32/Tooncom.I (Microsoft); Downloader-DZ (McAfee); Adware.GoGoTools (Symantec); Trojan-Downloader.Win32.Tooncom.i (Kaspersky); BehavesLike.Win32.Malware.bph (mx-v) (Sunbelt); Trojan.Downloader.Tooncom.I (FSecure)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
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.
TECHNICAL DETAILS
37,376 bytes
EXE
No
11 Jan 2012
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.
Other System Modifications
This Trojan adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer
loader2 = "1"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Search Page = "http://{BLOCKED}hardcore.com/main/sp.php"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Search Bar = "http://{BLOCKED}hardcore.com/main/sp.php"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Start Page = "http://{BLOCKED}hardcore.com/main/hp.php"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer
SearchURL = "http://{BLOCKED}hardcore.com/main/sp.php"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer
loaderGuid = "b52b7d45-73ed-4c8a-b284-ac7c00d5f942"
Dropping Routine
This Trojan drops the following files:
- %Favorites%\~ Series Hardcore Pic Sets and Movies.url
- %Favorites%\~ New Porn Pics everyday.url
- %Favorites%\~ Fully categories porn database. Enjoy!.url
(Note: %Favorites% is the current user's Favorites folder, which is usually C:\Windows\Favorites on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Favorites on Windows NT, and C:\Documents and Settings\{user name}\Favorites on Windows 2000, XP, and Server 2003.)
This report is generated via an automated analysis system.
SOLUTION
9.200
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
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
- loader2="1"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- Search Page="http://{BLOCKED}hardcore.com/main/sp.php"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- Search Bar="http://{BLOCKED}hardcore.com/main/sp.php"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- Start Page="http://{BLOCKED}hardcore.com/main/hp.php"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer
- SearchURL="http://{BLOCKED}hardcore.com/main/sp.php"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
- loaderGuid="b52b7d45-73ed-4c8a-b284-ac7c00d5f942"
Step 3
Search and delete these files
- %Favorites%\~ Series Hardcore Pic Sets and Movies.url
- %Favorites%\~ New Porn Pics everyday.url
- %Favorites%\~ Fully categories porn database. Enjoy!.url
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_TOONCOM.I. 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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