It displays fake alerts that warn users hard drive errors. It also displays fake system diagnostics 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 a website asking for sensitive information, such as credit card numbers.
This Trojan may be unknowingly downloaded by a user while visiting malicious websites.
It adds registry entries to enable its automatic execution at every system startup.
It connects to a website to send and receive information.
It modifies the Internet Explorer Zone Settings.
File size: Varies
File type: PE
Memory resident: Yes
Initial samples received date: 08 Jan 2011
Payload: Connects to URLs/Ips; Displays fake alerts
Arrival Details
This Trojan may be unknowingly downloaded by a user while visiting malicious websites.
Installation
This Trojan drops the following copies of itself into the affected system:
- %User Temp%\tmp3.tmp
- %User Temp%\upd32.exe
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)
It drops the following files:
- %User Temp%\{random number}.exe - also detected as TROJ_FAKEAL.GG
- %User Temp%\upd32.dll - also detected as TROJ_FAKEAL.GG
- {malware path}\{random number}.exe - also detected as TROJ_FAKEAL.GG
- %User Temp%\{random number}
- %Start Menu%\Programs\System Defragmenter\System Defragmenter.lnk
- %Desktop%\System Defragmenter.lnk
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.. %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.)
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
upd32.exe = %User Temp%\upd32.exe
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random number} = %User Temp%\{random number}.exe
Other System Modifications
This Trojan adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
WarnOnZoneCrossing = 0
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Use FormSuggest = Yes
HKEY_CURRENT_USER\Software\Microsoft
BootData = %User Temp%\{random number}.exe
Backdoor Routine
This Trojan connects to the following websites to send and receive information:
- http://{BLOCKED}ullvic.com/readdatagateway.php
Web Browser Home Page and Search Page Modification
This Trojan modifies the Internet Explorer Zone Settings.
Other Details
This Trojan does the following:
- Displays fake alerts, such as the following:
- Displays fake warning on hard drive errors. It also displays fake system diagnostics 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 website asking for sensitive information, such as credit card numbers:
- http://{BLOCKED}e.defragmentetorstore.com/secure/payments
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