BKDR_NETSNAKE.H
Backdoor:Win32/Netsnake.H (MICROSOFT), Win32/Netsnake.H trojan (NOD32)
Windows
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor 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
59,816 bytes
EXE
Yes
26 Nov 2013
Arrival Details
This backdoor 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 backdoor drops the following copies of itself into the affected system and executes them:
- %System%\iexplore.exe
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It drops the following files:
- %System%\psitnthk.dll
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
Autostart Technique
This backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
mssysint = "iexplore.exe"
Other System Modifications
This backdoor adds the following registry entries as part of its installation routine:
HKEY_LOCAL_MACHINE\Software\Classes\
ZSnSn
dwUpgrade = "{random values}"
It adds the following registry keys as part of its installation routine:
HKEY_LOCAL_MACHINE\Software\Classes\
ZSnSn
Other Details
This backdoor connects to the following possibly malicious URL:
- http://web.{BLOCKED}a.net/download/power001.snk
- pop3.{BLOCKED}a.com.cn
- pop.163.idns.{BLOCKED}h.net
- http://www.{BLOCKED}0.com/mima/zhuangbei/query.php