JOKE_GHOST
Troj/VB-DYK (Sophos), W32/VB.DYK!tr (Fortinet), W32/Trojan.AAKR (FProt), Trojan.Win32.VB (Ikarus), Win32/VB.NGL trojan (NOD32), Adware/AccesMembre (Panda)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Joke Program
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This joke program 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
586,213 bytes
04 May 2013
Arrival Details
This joke program 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 joke program drops the following file(s)/component(s):
- %System Root%\1234.exe
- %System Root%\Fart.wav
- %System Root%\Ghost.wav
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It drops the following copies of itself into the affected system:
- %Windows%\Joke.exe
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
Autostart Technique
This joke program adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServices
DLLReg = "%Windows%\Joke.exe -np"