TSPY_GOLROTED.PE

May 03, 2016
 Analysis by: Pearl Charlaine Espejo
 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.

  TECHNICAL DETAILS

File Size:

1,772,104 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

20 Apr 2016

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 copies of itself into the affected system:

  • %All Users Profile%\Application Data\EcKvCjMl\iebwYR.exe

(Note: %All Users Profile% is the All Users folder, where it usually is C:\Documents and Settings\All Users on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData 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.)

Autostart Technique

This spyware drops the following file(s) in the Windows User Startup folder to enable its automatic execution at every system startup:

  • EcKvCjMl.url

Dropping Routine

This spyware drops the following files:

  • %User Temp%\Login Data
  • %All Users Profile%\Application Data\ajLgJpQ\35c79da089a04f94a7a84fcd514119cf
  • %All Users Profile%\Application Data\ajLgJpQ\99283155ab9b4fb9833ba8208e0457bb
  • %All Users Profile%\Application Data\ajLgJpQ\fe3c1bce30f94ccfa91b157a9aa3cc83
  • %All Users Profile%\Application Data\ajLgJpQ\4d9ac40b2f83446b949f3fd078d38058
  • %All Users Profile%\Application Data\ajLgJpQ\0d24d72d994a4d6095441aa85c48c062
  • %All Users Profile%\Application Data\ajLgJpQ\2326f6c83a474073aa0a0051ef1ab7ba
  • %All Users Profile%\Application Data\ajLgJpQ\af42abde3f274b44bba4877a4732b735
  • %All Users Profile%\Application Data\ajLgJpQ\6164115ca63a4280a5ea00052d5bc168

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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.. %All Users Profile% is the All Users folder, where it usually is C:\Documents and Settings\All Users on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData 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 Details

This spyware connects to the following URL(s) to get the affected system's IP address:

  • icanhazip.com
  • ipinfo.io/ip
  • curlmyip.com
  • bot.whatismyipaddress.com

It connects to the following possibly malicious URL:

  • http://repository.{BLOCKED}m.pl/ca.cer

NOTES:

This spyware accesses the possibly malicious email address {BLOCKED}haelpc@yandex.com.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

12.496.01

FIRST VSAPI PATTERN DATE:

29 Apr 2016

VSAPI OPR PATTERN File:

12.497.00

VSAPI OPR PATTERN Date:

30 Apr 2016

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 and note files detected as TSPY_GOLROTED.PE

Step 4

Identify and terminate files detected as TSPY_GOLROTED.PE

[ 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 5

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.
  • %User Startup%\EcKvCjMl.url
  • %User Temp%\Login Data
  • %All Users Profile%\Application Data\ajLgJpQ\35c79da089a04f94a7a84fcd514119cf
  • %All Users Profile%\Application Data\ajLgJpQ\99283155ab9b4fb9833ba8208e0457bb
  • %All Users Profile%\Application Data\ajLgJpQ\fe3c1bce30f94ccfa91b157a9aa3cc83
  • %All Users Profile%\Application Data\ajLgJpQ\4d9ac40b2f83446b949f3fd078d38058
  • %All Users Profile%\Application Data\ajLgJpQ\0d24d72d994a4d6095441aa85c48c062
  • %All Users Profile%\Application Data\ajLgJpQ\2326f6c83a474073aa0a0051ef1ab7ba
  • %All Users Profile%\Application Data\ajLgJpQ\af42abde3f274b44bba4877a4732b735
  • %All Users Profile%\Application Data\ajLgJpQ\6164115ca63a4280a5ea00052d5bc168

Step 6

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