Analysis by: RonJay Kristoffer Caragay
ALIASES:

ADWARE/Downware.1003520.3 (Avira); a variant of Win32/Gaofenquming.A potentially unwanted (ESET-NOD32); PUP.Optional.Downloader (Malwarebytes)

 PLATFORM:

Windows

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size: 1,002,496 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 01 Jan 2015

Arrival Details

This adware 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 adware connects to the following possibly malicious URL:

  • http://{BLOCKED}n.72zx.com/errorrefer.php?ver=1.2&developer=0&webid=&softid=&errcode=1&winver=5.1&rnd={random numbers}

It requires its main component to successfully perform its intended routine.

  SOLUTION

Minimum Scan Engine: 9.750

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 ADW_DOWNWARE.GE. 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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