Author: Joachim Suico   
 

Backdoor.Kelihos.A5 (CAT-QuickHeal); BackDoor-FBEL!4ABC34494BDF (McAfee); HEUR:Trojan.Win32.Generic (Kaspersky)

 PLATFORM:

Windows

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL::
 DISTRIBUTION POTENTIAL::
 REPORTED INFECTION:
 INFORMATION EXPOSURE:
Low
Medium
High
Critical

  • Threat Type:
    Backdoor

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW


  TECHNICAL DETAILS

File size: 1,138,125 bytes
File type: EXE
Memory resident: Yes
INITIAL SAMPLES RECEIVED DATE: 17 сентября 2013

Técnica de inicio automático

Agrega las siguientes entradas de registro para permitir su ejecución automática cada vez que se inicia el sistema:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
{string 1}{string 2} = "{malware path}\{malware file}"

Otras modificaciones del sistema

Agrega las siguientes entradas de registro:

HKEY_CURRENT_USER\Software\Microsoft\
IMEJP\{number}\MSIME\
AutoCharWidth
DefaultCompressedRecord = "{hex values}"

HKEY_CURRENT_USER\Software\Microsoft\
IMEJP\{number}\MSIME\
AutoCharWidth
RecordModifiedMax = "{random value}=="

HKEY_CURRENT_USER\Software\Microsoft\
IMEJP\{number}\MSIME\
AutoCharWidth
FlagsModifiedValid = "0"

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows XP)
PersistentLocalizedName = "{hex values}"

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows XP)
LineLoadedQuick = "{random value}=="

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows XP)
PlatformCompressedValid = "0"

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows XP)
DBSavedUse = "{hex values}"

HKEY_CURRENT_USER\Software\TansuTCP (Windows XP)
ActiveModifiedTheme = "{hex values}"

HKEY_CURRENT_USER\Software\TansuTCP (Windows XP)
SizeCompletedValid = "{random value}=="

HKEY_CURRENT_USER\Software\TansuTCP (Windows XP)
InfoPlayedCurrent = "0"

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows 7)
ActiveModifiedTheme = "{hex values}"

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows 7)
SizeCompletedValid = "{random value}=="

HKEY_CURRENT_USER\Software\Sysinternals\
Process Explorer (Windows 7)
InfoPlayedCurrent = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\ime\
IMTC70 (Windows 7)
PersistentLocalizedName = "{hex values}"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\ime\
IMTC70 (Windows 7)
LineLoadedQuick = "{random value}=="

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\ime\
IMTC70 (Windows 7)
PlatformCompressedValid = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\ime\
IMTC70 (Windows 7)
DBSavedUse = "{hex values}"