TROJ_FAKEAV.SMHB

This Trojan may be downloaded from remote sites by other malware.

It connects to certain URLs. It may do this to remotely inform a malicious user of its installation. It may also do this to download possibly malicious files onto the computer, which puts the computer at a greater risk of infection by other threats.

It deletes the initially executed copy of itself.

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 a certain website asking for sensitive information, such as credit card numbers.

Arrival Details

This Trojan may be downloaded from remote site(s) by the following malware:

• TROJ_BREDO.NEW

Installation

This Trojan drops the following copies of itself into the affected system:

• C:\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}.exe

It drops the following non-malicious file:

• C:\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}

It creates the following folders:

• C:\Documents and Settings\All Users\Application Data\{random folder name}

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\RunOnce
{random file name} = C:\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}.exe

Download Routine

This Trojan connects to the following malicious URLs:

• http://{BLOCKED}2.{BLOCKED}2.67.200/api/urls/?affid=11000
• http://{BLOCKED}2.{BLOCKED}2.67.200/api/stats/install/1004/11000

It connects to the following website(s) to download and execute a malicious file:

• http://{BLOCKED}2.{BLOCKED}4.4.134/{random}.exe?affid=11000 - detected as TROJ_FAKESYS.HBB

Other Details

This Trojan deletes the initially executed copy of itself

Rogue Antivirus Routine

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 a certain website asking for sensitive information, such as credit card numbers.

NOTES:
It prevents the execution of any executable file, aside from the following:

• Credit card information such as card type, card number, expiration date, name
• Contact information such as email, country, address, phone number

• {BLOCKED}e.{BLOCKED}stpayplus.com