WORM_MSIL.LTN
Worm.MSIL.Roxin.v (Kaspersky), W32/Roxin.V!worm (Fortinet)
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
541,184 bytes
Yes
04 Apr 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 files:
- %User Profile%\Templates\Tcpz-x86.sys
- {Malware Path}\MYSQL.DATA.DLL
(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 worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
bootStart = "{Malware Path and Filename}"
It adds and runs the following services:
- Tcpz-x86
Other System Modifications
This worm adds the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Tcpz-x86
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Tcpz-x86
ImagePath = "%User Profile%\Templates\Tcpz-x86.sys"
Other Details
This worm connects to the following possibly malicious URL:
- http://{BLOCKED}.{BLOCKED}.134.99/gettcp.aspx?intTimes={number}
- http://{BLOCKED}i.{BLOCKED}4.info/gettcp.aspx?intTimes={number}