TROJ_FAKEAV.CTV
Windows 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan displays fake alerts.
This Trojan may be downloaded by other malware/grayware/spyware from remote sites. It may be unknowingly downloaded by a user while visiting malicious websites.
It accesses websites to download files. This action allows this malware to possibly add other malware on the affected computer.
TECHNICAL DETAILS
136,704 bytes
EXE
Yes
23 Feb 2011
Downloads files, displays fake alerts
Arrival Details
This Trojan may be downloaded by other malware/grayware/spyware from remote sites.
It may be unknowingly downloaded by a user while visiting malicious websites.
Installation
This Trojan drops the following copies of itself into the affected system:
- %Program Files%\{random folder}\{random file name}.exe
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServices
{malware file name} = {malware path and file name}.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
{malware file name} = {malware path and file name}.exe
Download Routine
This Trojan accesses websites to download the following files:
- {BLOCKED}rusantispyware2011soft.com
- {BLOCKED}rawebsoft.info
- {BLOCKED}t-pro.me
It accesses the following websites to download files:
Rogue Antivirus Routine
This Trojan displays the following fake alerts:
- Your computer is being used as spamming machine. You can get sued for spam.
- Your computer WILL BE DISCONNECTED FORM INTERNET BECAUSE SPAMMING OTHER PCs.
- Your computer might be at risk
- No firewall is turned on
- Automatic Updates is turned off
- Antivirus software might not be activated
- Click this balloon to fix this problem.
- Your computer might be at risk
- Antivirus detects viruses, worms, and Trojan horses. They can (and do) destroy data, format your hard disk or can destroy the BIOS. By destroying the BIOS many times you end up buying a new motherboard or if the bios chip is removable then that chip would need replacing.
- Click this balloon to fix this problem.
SOLUTION
8.900
7.854.02
23 Feb 2011
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
Identify and terminate files detected as TROJ_FAKEAV.CTV
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 3
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
- {malware file name} = {malware path and file name}.exe
- {malware file name} = {malware path and file name}.exe
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- {malware file name} = {malware path and file name}.exe
- {malware file name} = {malware path and file name}.exe
Step 4
Scan your computer with your Trend Micro product to delete files detected as TROJ_FAKEAV.CTV. 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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