HKTL_MINESKEALER.GC

August 05, 2015
 Analysis by: Donald Adrian Castillo
 ALIASES:

W32/INFOSTEA.DF!tr (FORTINET)

 PLATFORM:

Windows

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This hacking tool arrives as a component bundled with malware/grayware packages. It may be manually installed by a user.

  TECHNICAL DETAILS

File Size:

706, 560 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

14 May 2014

Arrival Details

This hacking tool arrives as a component bundled with malware/grayware packages.

It may be manually installed by a user.

NOTES:

This hacking tool is used to steal and load other users' Minecraft skins. It accepts the parameter {username of other player}.

It connects to the following URLs:

  • https://skins.minecraft.net/MinecraftSkins/{parameter}.png
  • http://www.signaturecraft.us/avatars/25/full/{parameter}.png
  • https://dl.dropboxusercontent.com/s/{BLOCKED}0su5cfd/version.txt
  • https://dl.dropboxusercontent.com/s/l{BLOCKED}ajfld1/blacklist.txt
  • https://dl.dropboxusercontent.com/s/{BLOCKED}dxufv/Minecraft%20Skin%20Stealer.exe
  • https://minecraft.net/profile/skin/remote?url=http://minecraft.net/skin/{parameter}

This hacking tool may download the following files:

  • %Temp%\mcskin.png
  • {Grayware Path}\Minecraft Skin Stealer {version}.exe

It saves the downloaded file on the user preferred location. It is capable of updating itself. It uses the following user interface:

  SOLUTION

Minimum Scan Engine:

9.750

SSAPI PATTERN File:

1.647.01

SSAPI PATTERN Date:

05 Aug 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.  
  • %Temp%\mcskin.png
  • {Grayware Path}\Minecraft Skin Stealer {version}.exe

Step 4

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