TROJ_HPMYAPP

April 10, 2015
 Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes


  TECHNICAL DETAILS

File Size:

Varies

File Type:

EXE

Memory Resident:

No

NOTES:

This is the Trend Micro detection for malware that uses a custom packer (or a “hacker” packer) to avoid detection. This detection may detect malware that belongs to the following malware family:

Custom packer routines

It checks if the following file exists:

  • c:\myapp.exe

It checks if it is executed on a virtual machine by searching for the following processes and terminates itself if found:

  • vmtoolsd.exe
  • VBoxService.exe

It checks if the executed copy of itself contains the following virtual machine module and terminates itself if found:

  • SbieDll.dll (Sandboxie)

Once the custom packer completes the system check, it will decrypt and execute the embedded malware. As a result, the behavior of the embedded malware is exhibited on the affected system.

  SOLUTION

Minimum Scan Engine:

9.750

VSAPI OPR PATTERN File:

11.593.00

VSAPI OPR PATTERN Date:

09 Apr 2015

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

Scan your computer with your Trend Micro product to delete files detected as TROJ_HPMYAPP. 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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