TROJ_CLICKER.CSU
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Via email
This backdoor 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.
TECHNICAL DETAILS
106,496 bytes
EXE
Yes
04 Apr 2013
Compromises system security
Arrival Details
This backdoor 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.
Autostart Technique
This backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Google Services = %Program Files%\Google\GoogleUpdate.exe
Other System Modifications
This backdoor modifies the following registry key(s)/entry(ies) as part of its installation routine:
HKEY_CURRENT_USER\AppEvents\Schemes\
Apps\Explorer\Navigating\
.Current
@ = ""
Other Details
This backdoor connects to the following possibly malicious URL:
- http://{BLOCKED}8.com
- http://www.{BLOCKED}bo.org
- http://{BLOCKED}d.net
- http://{BLOCKED}t24h.net
- http://{BLOCKED}h.net
NOTES:
It monitors mouse behavior to continue its malicious routines. It continually connects to the given URLs to mimic a site visit thus adding to the websites' advertisement view count.
SOLUTION
9.300
9.836.01
04 Apr 2013
9.837.00
04 Apr 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
Scan your computer with your Trend Micro product and note files detected as TROJ_CLICKER.CSU
Step 3
Terminate a malware/grayware process
*Note: If the detected process is not displayed in theWindows Task Manager, continue doing the next steps.
- GoogleUpdate.exe
Step 4
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\Run
- Google Services = %Program Files%\Google\GoogleUpdate.exe
- Google Services = %Program Files%\Google\GoogleUpdate.exe
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_CLICKER.CSU. 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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