WORM_BUBLIK.GY
Trojan.Win32.Bublik.aavv (Kaspersky), VirTool:Win32/CeeInject (Microsoft)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm 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
303,104 bytes
EXE
16 Jan 2013
Arrival Details
This worm 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 worm drops the following copies of itself into the affected system and executes them:
- %Application Data%\{random folder found}\{filename found in %System%}
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It drops the following files:
- {removable drive letter}:\{random folder name}\$REChCLE.BIN
- {removable drive letter}:\{random folder name}\thLmbs.db
- {removable drive letter}:\{random folder name}\vagefile.sys
- {removable drive letter}:\{random folder name}\desktopfini
- {removable drive letter}:\{random folder name}\readme.tat
Autostart Technique
This worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random CLSID} = "%Application Data%\{random folder found}\{filename found in %System%}"
Other Details
This worm connects to the following possibly malicious URL:
- https://{BLOCKED}ections.cc/ping.html
- https://{BLOCKED}s.su/ping.html
- https://{BLOCKED}s.su/files/rar.exe
- https://{BLOCKED}s.su/files/vnc.dll
- https://{BLOCKED}.{BLOCKED}.88.87:8890/files/010-update-vl0d3/msg.gsm
NOTES:
It creates .LNK (shortcut) files using folder names found in removable drives. It then hides the original folder tricking users to click .LNK files. These .LNK files point out to a dropped copy of itself in the removable drive using a {random folder found in removable}\{random name}.{random extension}.