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Trojan.Win32.PROMETEI.E

March 01, 2023
 Analysis by: Carlos Villegas Madrid
 ALIASES:

UDS:Trojan.Win32.Prometei.gen (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


This Trojan 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:

308,224 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

11 Feb 2023

Payload:

Drops files

Arrival Details

This Trojan 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 drops the following files:

  • %Windows%\dell\{Ip Address}.cpass → contains encoded credentials
  • %Windows%\dell\{Ip Address}.cpass_good → contains successfully authenticated encoded password

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Other Details

This Trojan does the following:

  • It is being utilized by rdpcIip.exe → Detected as Trojan.Win32.PROMETEI.F
  • It must be executed on a specific directory in order to continue to its malicious routine.
  • It must be executed with the following parameters:
    • "%Windows%\dell\windrlver.exe" ssh {Ip Address}:{Port} "%Windows%\dell\{Ip Address}" {BLOCKED}.{BLOCKED}.123.34 HV
  • It has the following functionalities:
    • It tries to login to remote servers using the list of pre-defined and gathered system credentials.
    • If the login was successful, It copies and executes malicious modules on the affected server.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.272.04

FIRST VSAPI PATTERN DATE:

22 Feb 2023

VSAPI OPR PATTERN File:

18.273.00

VSAPI OPR PATTERN Date:

23 Feb 2023

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

    • Troj.Win32.TRX.XXPE50FFF065

Step 2

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 3

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 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.  
  • %Windows%\dell\{Ip Address}.cpass
  • %Windows%\dell\{Ip Address}.cpass_good

Step 5

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.PROMETEI.E. 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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