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TROJ_FAKEAV.JHH

June 10, 2013
 Modified by: Nikko Tamana
 ALIASES:

Troj/FakeAV-FWY (Sophos), W32/Kelihos.BBB!tr (Fortinet), Backdoor.Win32.Kelihos (Ikarus), Rogue:Win32/Winwebsec (Microsoft), Win32/Adware.SystemSecurity.AL application (NOD32), Lookslike.Win32.Winwebsec.p (v) (Sunbelt)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

File Size:

503,296 bytes

File Type:

EXE

Initial Samples Received Date:

09 Oct 2012

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.

Installation

This Trojan adds the following folders:

  • All Users' %User Profile%\Application Data\{random name}
  • %Start Menu%\Programs\System Progressive Protection

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista and 7.)

It drops the following file(s)/component(s):

  • All Users' %User Profile%\Application Data\{random name}\{random name}
  • All Users' %User Profile%\Application Data\{random name}\{random name}.ico
  • %Desktop%\System Progressive Protection.lnk
  • %Start Menu%\Programs\System Progressive Protection\System Progressive Protection.lnk

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\Desktop on Windows Vista and 7.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista and 7.)

It drops the following copies of itself into the affected system:

  • All Users' %User Profile%\Application Data\{random name}\{random name}.exe

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

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 name} = "All Users' %User Profile%\Application Data\{random name}\{random name}.exe"

Other System Modifications

This Trojan adds the following registry entries as part of its installation routine:

HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products\{random name}
(Default) = "1"

Other Details

This Trojan connects to the following possibly malicious URL:

  • {BLOCKED}3.4.225.41