BKDR_CAPHAW.SM5
Backdoor:Win32/Caphaw.AD (Microsoft)
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.
It deletes the initially executed copy of itself.
TECHNICAL DETAILS
Varies
EXE
20 Oct 2014
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:
- %Application Data%\{random user folder}\{random user subfolder}\sysocmgr.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Autostart Technique
This backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
diskperf.exe = "%Application Data%\{random user folder}\{random user subfolder}\sysocmgr.exe"
Other Details
This backdoor connects to the following possibly malicious URL:
- {BLOCKED}sh2wj7wv621.uphebuch.su
- {BLOCKED}lpzqk1q07ni.oonucoog.cc
- {BLOCKED}wn4x8mxujl.ahthuvuz.cc
It deletes the initially executed copy of itself