HKTL_COINMINE

November 30, 2017

Analysis by: Rika Joi Gregorio

Modified by: Automation

PLATFORM:

Windows

OVERALL RISK RATING:

REPORTED INFECTION:

SYSTEM IMPACT RATING:

INFORMATION EXPOSURE:

Threat Type: Hacking Tool
Destructiveness: No
Encrypted:
In the wild: Yes

OVERVIEW

This Hacking Tool 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: 3,990,016 bytes

File Type: EXE

Memory Resident: No

Initial Samples Received Date: 30 Nov 2017

Arrival Details

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

Dropping Routine

This Hacking Tool drops the following files:

%User Temp%\aut1.tmp
%User Temp%\3.exe
%User Temp%\aut5.tmp
%User Temp%\aut8.tmp
%User Temp%\autB.tmp
%User Temp%\autE.tmp
%User Temp%\aut11.tmp
%User Temp%\aut14.tmp
%User Temp%\aut17.tmp
%User Temp%\aut1A.tmp
%User Temp%\aut1D.tmp
%User Temp%\aut20.tmp
%User Temp%\aut23.tmp
%User Temp%\aut26.tmp
%User Temp%\aut29.tmp
%User Temp%\aut2C.tmp
%User Temp%\aut2F.tmp
%User Temp%\aut32.tmp
%User Temp%\aut35.tmp
%User Temp%\aut38.tmp
%User Temp%\aut3B.tmp
%User Temp%\aut3E.tmp
%User Temp%\aut41.tmp
%User Temp%\aut44.tmp
%User Temp%\aut47.tmp
%User Temp%\aut4A.tmp
%User Temp%\aut4D.tmp
%User Temp%\aut50.tmp
%User Temp%\aut53.tmp
%User Temp%\aut56.tmp
%User Temp%\aut59.tmp
%User Temp%\aut5C.tmp
%User Temp%\aut5F.tmp
%User Temp%\aut62.tmp
%User Temp%\aut65.tmp
%User Temp%\aut68.tmp
%User Temp%\aut6B.tmp
%User Temp%\aut6E.tmp
%User Temp%\aut71.tmp

(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.)

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine: 9.8

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

Search and delete these components

[ Learn More ]

There may be some components 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 Temp%\aut1.tmp
%User Temp%\3.exe
%User Temp%\aut5.tmp
%User Temp%\aut8.tmp
%User Temp%\autB.tmp
%User Temp%\autE.tmp
%User Temp%\aut11.tmp
%User Temp%\aut14.tmp
%User Temp%\aut17.tmp
%User Temp%\aut1A.tmp
%User Temp%\aut1D.tmp
%User Temp%\aut20.tmp
%User Temp%\aut23.tmp
%User Temp%\aut26.tmp
%User Temp%\aut29.tmp
%User Temp%\aut2C.tmp
%User Temp%\aut2F.tmp
%User Temp%\aut32.tmp
%User Temp%\aut35.tmp
%User Temp%\aut38.tmp
%User Temp%\aut3B.tmp
%User Temp%\aut3E.tmp
%User Temp%\aut41.tmp
%User Temp%\aut44.tmp
%User Temp%\aut47.tmp
%User Temp%\aut4A.tmp
%User Temp%\aut4D.tmp
%User Temp%\aut50.tmp
%User Temp%\aut53.tmp
%User Temp%\aut56.tmp
%User Temp%\aut59.tmp
%User Temp%\aut5C.tmp
%User Temp%\aut5F.tmp
%User Temp%\aut62.tmp
%User Temp%\aut65.tmp
%User Temp%\aut68.tmp
%User Temp%\aut6B.tmp
%User Temp%\aut6E.tmp
%User Temp%\aut71.tmp

To manually delete a malware/grayware file from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

Right-click Start then click Search....
In the File name* input box, type the following:
%User Temp%\aut1.tmp
%User Temp%\3.exe
%User Temp%\aut5.tmp
%User Temp%\aut8.tmp
%User Temp%\autB.tmp
%User Temp%\autE.tmp
%User Temp%\aut11.tmp
%User Temp%\aut14.tmp
%User Temp%\aut17.tmp
%User Temp%\aut1A.tmp
%User Temp%\aut1D.tmp
%User Temp%\aut20.tmp
%User Temp%\aut23.tmp
%User Temp%\aut26.tmp
%User Temp%\aut29.tmp
%User Temp%\aut2C.tmp
%User Temp%\aut2F.tmp
%User Temp%\aut32.tmp
%User Temp%\aut35.tmp
%User Temp%\aut38.tmp
%User Temp%\aut3B.tmp
%User Temp%\aut3E.tmp
%User Temp%\aut41.tmp
%User Temp%\aut44.tmp
%User Temp%\aut47.tmp
%User Temp%\aut4A.tmp
%User Temp%\aut4D.tmp
%User Temp%\aut50.tmp
%User Temp%\aut53.tmp
%User Temp%\aut56.tmp
%User Temp%\aut59.tmp
%User Temp%\aut5C.tmp
%User Temp%\aut5F.tmp
%User Temp%\aut62.tmp
%User Temp%\aut65.tmp
%User Temp%\aut68.tmp
%User Temp%\aut6B.tmp
%User Temp%\aut6E.tmp
%User Temp%\aut71.tmp
In the Look In drop-down list, select My Computer then press Enter.
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

• For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen,then click File Explorer.
In the Search Computer/This PC input box, type:
%User Temp%\aut1.tmp
%User Temp%\3.exe
%User Temp%\aut5.tmp
%User Temp%\aut8.tmp
%User Temp%\autB.tmp
%User Temp%\autE.tmp
%User Temp%\aut11.tmp
%User Temp%\aut14.tmp
%User Temp%\aut17.tmp
%User Temp%\aut1A.tmp
%User Temp%\aut1D.tmp
%User Temp%\aut20.tmp
%User Temp%\aut23.tmp
%User Temp%\aut26.tmp
%User Temp%\aut29.tmp
%User Temp%\aut2C.tmp
%User Temp%\aut2F.tmp
%User Temp%\aut32.tmp
%User Temp%\aut35.tmp
%User Temp%\aut38.tmp
%User Temp%\aut3B.tmp
%User Temp%\aut3E.tmp
%User Temp%\aut41.tmp
%User Temp%\aut44.tmp
%User Temp%\aut47.tmp
%User Temp%\aut4A.tmp
%User Temp%\aut4D.tmp
%User Temp%\aut50.tmp
%User Temp%\aut53.tmp
%User Temp%\aut56.tmp
%User Temp%\aut59.tmp
%User Temp%\aut5C.tmp
%User Temp%\aut5F.tmp
%User Temp%\aut62.tmp
%User Temp%\aut65.tmp
%User Temp%\aut68.tmp
%User Temp%\aut6B.tmp
%User Temp%\aut6E.tmp
%User Temp%\aut71.tmp
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: Read the following Microsoft page if these steps do not work on Windows 7.

Step 3

Scan your computer with your Trend Micro product to delete files detected as HKTL_COINMINE. 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 the following Trend Micro Support pages for more information:

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HKTL_COINMINE

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