Analysis by: Kiyoshi Obuchi
ALIASES:

TrojanDownloader:JS/Nemucod (Microsoft); JS/TrojanDownloader.Nemucod.CZG trojan (NOD32)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

This is the Trend Micro detection for files that exhibit certain behaviors.

  TECHNICAL DETAILS

File Size: 317 bytes
Memory Resident: No
Initial Samples Received Date: 30 Jun 2013

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

This is the Trend Micro detection for:

  • Damaged samples of JS_CERBER variants.
  • Samples detected by this pattern contains code errors and/or file structure error, thus they fail to exhibit their intended routines.