BKDR_POISON.JSS
W32/Agent.PEH!tr (Fortinet), Backdoor:Win32/Poison.E (Microsoft), Win32/TrojanDropper.Agent.PEH trojan (NOD32)
Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows 7
Threat Type: Backdoor
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware, Spammed via email
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 executes commands from a remote malicious user, effectively compromising the affected system.
TECHNICAL DETAILS
724,240 bytes
EXE
Yes
11 Oct 2012
Compromises system security, Connects to URLs/IPs
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:
- %User Profile%\Application Data\win32x.exe
- %User Profile%\AppData\Roaming\win32x.exe (for Windows Vista/Windows 7 only)
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
Backdoor Routine
This backdoor executes the following commands from a remote malicious user:
- Send system information (Lan IP, Wan IP, Computer name, Username, Account Type, OS)
- Send hardware information (CPU speed, Memory)
- Manage Files (Search, Download, Upload, Execute, Rename, Delete)
- Manage Registries (Search, Modify, Delete, Rename, Create)
- Manage Processes (View, Kill, Suspend, Unload Module)
- Manage Services (View, Start, Stop, Edit, Install, Uninstall)
- Manage Devices (View, Enable, Disable, Remove)
- Manage Windows
- Relay server
- View,copy and uninstall applications
- View active ports
- Perform a shell command
- Download and inject remote codes to legitimate processes
- Log keystrokes and active window
- Capture screenshots
- View webcam activity
- Listen to microphone audio
- Update, Uninstall, Restart the malware
- Retrieve cached passwords and hashes
It connects to the following URL(s) to send and receive commands from a remote malicious user:
- {BLOCKED}8.{BLOCKED}1.108.190:1863
SOLUTION
9.300
9.524.02
13 Nov 2012
9.525.00
14 Nov 2012
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Scan your computer with your Trend Micro product to delete files detected as BKDR_POISON.JSS. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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