Analysis by: Adrian Cofreros

ALIASES:

PUA.Downloader (Symantec), Win32/JoyDownloader.D application (Nod32), APPL/Downloader.Gen (Antivir)

 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.

  TECHNICAL DETAILS

File Size: 70,552 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 20 Oct 2014

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}ahelper.org/fas/stat.php?0&tid=&st=:0:

  SOLUTION

Minimum Scan Engine: 9.700
SSAPI PATTERN File: 1.558.38
SSAPI PATTERN Date: 21 Oct 2014

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_JOYLOAD. 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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