TSPY_BROWSERPASS.GA

March 24, 2017
 Analysis by: Pearl Charlaine Espejo
 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet

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

It does not have any propagation routine.

It does not have any backdoor routine.

  TECHNICAL DETAILS

File Size:

336,096 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

02 Mar 2017

Payload:

Steals information

Arrival Details

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

Propagation

This Spyware does not have any propagation routine.

Backdoor Routine

This Spyware does not have any backdoor routine.

Dropping Routine

This Spyware drops the following files:

  • {Malware Path}\{malware filename}_lng.ini → dropped when the parameter "/savelangfile" is used upon execution

Information Theft

This Spyware gathers the following data:

  • Website
  • Web Browser
  • Username
  • Password
  • Password Strength
  • Username Field
  • Password Field
  • Created Time
  • Modified Time
  • Location of the browser's login database

It attempts to get stored information such as user names, passwords, and hostnames from the following browsers:

  • Internet Explorer
  • Mozilla Firefox
  • Yandex
  • Opera
  • Safari
  • Google Chrome
  • Sea Monkey
  • Vivaldi

Stolen Information

This Spyware saves the stolen information in the following file:

  • {Malware Path}\WB.txt

Other Details

This Spyware does the following:

  • It can also retrieve usernames and passwords from the following websites as long as the password is stored in the browser:
    • https://www.google.com/accounts/servicelogin
    • https://login.yahoo.com/config/login

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.266.05

FIRST VSAPI PATTERN DATE:

09 Mar 2017

VSAPI OPR PATTERN File:

13.267.00

VSAPI OPR PATTERN Date:

10 Mar 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

Identify and terminate files detected as TSPY_BROWSERPASS.GA

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 4

Search and delete these files

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • {Malware Path}\WB.txt
  • {Malware Path}\{malware filename}_lng.ini

Step 5

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