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TROJ_HILOTI.SMAE

September 27, 2013
 ALIASES:

Microsoft : Trojan:Win32/Hiloti.gen!D; Sophos : Mal/Hiloti-D

 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan opens random ports.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

22 Dec 2010

Installation

This Trojan drops the following copies of itself into the affected system:

  • %Windows%\{random}.dll

(Note: %Windows% is the Windows folder, which is usually C:\Windows.)

It injects codes into the following process(es):

  • explorer.exe

Autostart Technique

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

HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\
Windows\CURRENTVERSION\Run
{random} = rundll32.exe "%Windows%\{random}.dll",Startup

Backdoor Routine

This Trojan opens a random port to allow a remote user to connect to the affected system. Once a successful connection is established, the remote user executes commands on the affected system.

Other Details

This Trojan does the following:

  • It connects to remote sites to send and receive information.

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

7.755.00

VSAPI OPR PATTERN Date:

08 Jan 2011

NOTES:

Trend customers:

    Keep your pattern and scan engine files updated. Trend Micro antivirus software can clean or remove most types of computer threats. Malware, though, such as Trojans, scripts, overwriting viruses and joke programs which are identified as uncleanable, should simply be deleted.

All Internet users:

  • Use HouseCall - the Trend Micro online threat scanner to check for malware that may already be on your PC.
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