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TSPY_SHIZ.MJSR

July 23, 2015
 Analysis by: Jennifer Gumban
 Modified by: RonJay Kristoffer Caragay
 ALIASES:

Win32/Spy.Shiz.NCP (ESET-NOD32); RDN/Generic PWS.y!b2l (McAfee); Trojan:Win32/Bulta!rfn (Microsoft); TrojanSpy.Shiz!yvDfJQHCtFg (Agnitum)

 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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 modifies the Internet Explorer Zone Settings.

  TECHNICAL DETAILS

File Size:

442,368 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

14 Jul 2015

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.

Installation

This spyware drops the following files:

  • %Application Data%\{random folder 1}\1_info.txt
  • %Application Data%\{random folder 1}\1_cert.pfx
  • %Application Data%\{random folder 1}\cmdline.txt
  • %Application Data%\{random folder 1}\sysinfo.txt
  • %Application Data%\{random filename 1}
  • %Application Data%\{random filename 2}
  • %Application Data%\{random filename 3}.tmp

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other System Modifications

This spyware adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows
{random} = "{hex value}"

Web Browser Home Page and Search Page Modification

This spyware modifies the Internet Explorer Zone Settings.

Other Details

This spyware connects to the following URL(s) to check for an Internet connection:

  • vk.com
  • yandex.ru
  • download.windowsupdate.com

It connects to the following possibly malicious URL:

  • https://{BLOCKED}t-serv2978.com/news/userlogin.php
  • https://{BLOCKED}t-serv2978.com/news/userpanel.php

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.790.04

FIRST VSAPI PATTERN DATE:

14 Jul 2015

VSAPI OPR PATTERN File:

11.791.00

VSAPI OPR PATTERN Date:

15 Jul 2015

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

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.  
  • %Application Data%\{random folder 1}\1_info.txt
  • %Application Data%\{random folder 1}\1_cert.pfx
  • %Application Data%\{random folder 1}\cmdline.txt
  • %Application Data%\{random folder 1}\sysinfo.txt
  • %Application Data%\{random filename 1}
  • %Application Data%\{random filename 2}
  • %Application Data%\{random filename 3}.tmp

Step 4

Reset Internet security settings

[ Learn More ]

Step 5

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

Step 6

The following created files/folders/registry keys/registry entries cannot be identified by the user since there are no reference values in the created key. The only way it can be identified is by comparing the present system information with a backup. Note that the said components do not have to be deleted since it won't be harmful to the system.

  • HKEY_CURRENT_USER\Software\Microsoft\Windows
    • {random} = "{hex value}"


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