TROJ_FAKEAV.BWW
Rogue:Win32/FakeRean (Microsoft); Trojan.FakeAV (Symantec)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to certain websites asking for sensitive information, such as credit card numbers.
It terminates all executable files found running in the system. It avoids, however, terminating system processes.
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
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.
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Security Protection = "{malware path and file name}"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\FE0174CA6296F83D74D5BC83DD17BEFE
NOTES:
It displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to the following websites asking for sensitive information, such as credit card numbers:
- http://{BLOCKED}download.com/
- http://{BLOCKED}tion-sec.com/
It terminates all executable files found running in the system. It avoids, however, terminating system processes.
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
Restart in Safe Mode
Step 3
Delete this registry key
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
- FE0174CA6296F83D74D5BC83DD17BEFE
- FE0174CA6296F83D74D5BC83DD17BEFE
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
- Security Protection = "{malware path and file name}"
- Security Protection = "{malware path and file name}"
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_FAKEAV.BWW. 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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