Analysis by: Michael Jay Villanueva
 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Potentially Unwanted Application may arrive bundled with malware packages as a malware component. It 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: 138,260 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 13 Jun 2017

Arrival Details

This Potentially Unwanted Application may arrive bundled with malware packages as a malware component.

It 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 Potentially Unwanted Application requires the existence of the following files to properly run:

  • {malware path}\cygcom_err-2.dll
  • {malware path}\cygiconv-2.dll
  • {malware path}\cyglber-2-4-2.dll
  • {malware path}\cygidn-11.dll
  • {malware path}\cygcrypto-1.0.0.dll
  • {malware path}\cygldap-2-4-2.dll
  • {malware path}\cygintl-8.dll
  • {malware path}\cygcurl-4.dll
  • {malware path}\cygldap_r-2-4-2.dll
  • {malware path}\cygk5crypto-3.dll
  • {malware path}\cyggcc_s-seh-1.dll
  • {malware path}\cygnghttp2-14.dll
  • {malware path}\cygpsl-5.dll
  • {malware path}\cygkrb5-3.dll
  • {malware path}\cygsasl2-3.dll
  • {malware path}\cyggssapi_krb5-2.dll
  • {malware path}\cygssh2-1.dll
  • {malware path}\cygwin1.dll
  • {malware path}\cygssl-1.0.0.dll
  • {malware path}\cygz.dll
  • {malware path}\cygunistring-2.dll

  SOLUTION

Minimum Scan Engine: 9.850
SSAPI PATTERN File: 1.849.00
SSAPI PATTERN Date: 22 Jun 2017

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

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