arrow_back
search
close

TROJ_UPATRENC.SMJ5

March 30, 2015
 Analysis by: David John Agni
 Modified by: Rika Joi Gregorio
 ALIASES:

Trojan.Crypt.Upatre (Ikarus), Trojan.Upatre.Crypted.2 (F-Secure), Trojan.Upatre.Crypted.2 (BitDefender)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan may be downloaded by other malware/grayware from remote sites.

  TECHNICAL DETAILS

File Size:

469,315 bytes

File Type:

None

Memory Resident:

No

Initial Samples Received Date:

04 Mar 2015

Payload:

Downloads files

Arrival Details

This Trojan may be downloaded by the following malware/grayware from remote sites:

NOTES:

TROJ_UPATRENC.SMJ5 is Trend Micro’s detection for the downloaded file of TROJ_UPATRE which is in encrypted format.

Upon successful decryption, TROJ_UPATRE will proceed in executing the decrypted file.

Some of the downloaded file were in the family of ZBOT, VAWTRAK, RANSOMWARE, and DYREZA.

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.544.03

FIRST VSAPI PATTERN DATE:

17 Mar 2015

VSAPI OPR PATTERN File:

11.544.00

VSAPI OPR PATTERN Date:

18 Mar 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_UPATRENC.SMJ5. 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.


Did this description help? Tell us how we did.