Analysis by: Abraham Latimer Camba


Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)


  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes


Infection Channel: Dropped by other malware

This backdoor may be dropped by other malware.

It executes commands from a remote malicious user, effectively compromising the affected system.


File Size: 61,440 bytes
File Type: EXE, TMP
Memory Resident: Yes
Initial Samples Received Date: 22 Feb 2013
Payload: Compromises system security, Connects to URLs/IPs, Steals information, Logs keystrokes

Arrival Details

This backdoor may be dropped by the following malware:

Autostart Technique

This backdoor adds the following registry entries to enable its automatic execution at every system startup:

Load = "{malware path}\{malware filename}"

Backdoor Routine

This backdoor executes the following commands from a remote malicious user:

  • Capture screenshots
  • Download and inject remote codes to legitimate processes
  • Listen to microphone audio
  • Log keystrokes and active window
  • Manage devices (View, Enable, Disable, Remove)
  • Manage files (Search, Download, Upload, Execute, Rename, Delete)
  • Manage processes (View, Kill, Suspend, Unload Module)
  • Manage registries (Search, Modify, Delete, Rename, Create)
  • Manage services (View, Start, Stop, Edit, Install, Uninstall)
  • Manage windows
  • Perform remote shell
  • Relay server
  • Retrieve cached passwords and hashes
  • Send hardware information (CPU speed, Memory)
  • Send system information (LAN IP, WAN IP, Computer name, User name, Account Type, OS)
  • Update, Uninstall, Restart the malware
  • View active ports
  • View webcam activity
  • View,copy and uninstall applications

It connects to the following URL(s) to send and receive commands from a remote malicious user:



Minimum Scan Engine: 9.300

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Remove the malware/grayware file that dropped/downloaded BKDR_POISON.EVE

Step 3

Scan your computer with your Trend Micro product and note files detected as BKDR_POISON.EVE

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • Load = "{malware path}\{malware filename}"

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_POISON.EVE. 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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