ALIASES:

FakeScanti

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

MISLEADAPP is rogue antivirus software installed as usually as WireShark Antivirus. It lures users into paying a registration fee to be protected from malware. Similar to FAKEAV, it also displays fake scanning results.

  TECHNICAL DETAILS

Memory Resident: Yes
Payload: Displays fake scan results, Downloads files

Installation

This Trojan drops the following files:

  • %User Temp%\win3.tmp
  • %Windows%\ab7498d3.lg
  • %Windows%\trkwksa.dll
  • %Windows%\trkwksa.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

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

  • %Program Files%\qtime8_32.exe
  • %User Temp%\winupd64x.exe

(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

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
Quick Time Updater = "%Program Files%\qtime8_32.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
winupd64x.exe = "%User Temp%\winupd64x.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
trkwksa = "%Windows%\trkwksa.exe"

Other System Modifications

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

HKEY_CURRENT_USER\Software
fcb39e92-5c9b-4f6f-9765-77b959568acb =

HKEY_LOCAL_MACHINE\SOFTWARE\Antivirus
ID = "mmb"

HKEY_CURRENT_USER\Software\hycg\
hycg
lld = "{month-day of execution}"

HKEY_CURRENT_USER\Software\hycg\
hycg
pddc = "{month-day of execution}"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
kwsg
DisplayName = "Addendum Sidebar"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
kwsg
UninstallString = "%Windows%\trkwksa.exe" /dels"

It adds the following registry keys as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Antivirus

HKEY_CURRENT_USER\Software\hycg

HKEY_CURRENT_USER\Software\hycg\
hycg

HKEY_CURRENT_USER\Software\Microsoft\
ab7498d3

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
kwsg

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}.11.165/admin/cgi-bin/check_update.php?type=site
  • http://config.{BLOCKED}chguide.com/rep/lect.php
  • http://config.{BLOCKED}chguide.com/sb_conf.php?ovt=
  • http://config.{BLOCKED}chguide.com/xmlup/urls.php?ovt=
  • http://down.{BLOCKED}h.kr/old/pogej.dll
  • http://down.{BLOCKED}h.kr/old/pogej.exe
  • http://log.{BLOCKED}guide.com/log-bin/alive.php?ovt=
  • http://log.{BLOCKED}guide.com/log-bin/statics.php?maddr={mac address}&ipaddr={ip address}&ovt=&action=update
  • http://log.{BLOCKED}guide.com/log-bin/statics.php?maddr={mac address}&ipaddr={ip address}&ovt=&verno=&action=load
  • http://{BLOCKED}5.{BLOCKED}urceforyou.com/stget2.cgi?host=host&id=2955
  • http://{BLOCKED}9.{BLOCKED}oolonline.com/stget2.cgi?host=host&id=3019
  • http://{BLOCKED}9.{BLOCKED}klibrary.com/stget2.cgi?host=host&id=3019
  • http://{BLOCKED}9.{BLOCKED}eeforyou.com/stget2.cgi?host=host&id=3019
  • http://ww38.{BLOCKED}55.freesourceforyou.com/stget2.cgi?host=host&id=2955