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TrojanSpy.MSIL.LOKI.TIOIBYPS

January 27, 2020
 ALIASES:

Trojan:MSIL/CryptInject!MTB (Microsoft); RDN/Generic.fyv (McAfee); HEUR:Backdoor.MSIL.Androm.gen (Kaspersky); Troj/Fareit-IYH (Sophos); Win32.Malware!Drop (Sunbelt)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan Spy 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:

659,968 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

27 Jan 2020

Arrival Details

This Trojan Spy 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 Trojan Spy adds the following processes:

  • cmd.exe /C type nul > "{malware file path and name}:Zone.Identifier"
  • {malware file path and name}

Other System Modifications

This Trojan Spy adds the following registry entries:

HKEY_CURRENT_USER
(Default) = " -boot"

Dropping Routine

This Trojan Spy drops the following files:

  • {malware file path and name}:Zone.Identifier

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.850

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Identify and terminate files detected as TrojanSpy.MSIL.LOKI.TIOIBYPS

[ 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 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER
    • (Default) = " -boot"

Step 4

Search and delete this file

[ 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 file path and name}:Zone.Identifier

Step 5

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.MSIL.LOKI.TIOIBYPS. 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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