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Trojan.Win32.PLEAD.AF

July 02, 2019
 ALIASES:

N/A

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

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.

It does not have any file infection routine.

It does not have any propagation routine.

It executes commands from a remote malicious user, effectively compromising the affected system.

It does not have any information-stealing capability.

  TECHNICAL DETAILS

File Size:

69,333 bytes

File Type:

Other

Memory Resident:

Yes

Initial Samples Received Date:

28 Jun 2019

Payload:

Connects to URLs/IPs

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.

Infection Points

This Trojan does not have any file infection routine.

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan executes the following commands from a remote malicious user:

  • Executes arbitrary commands

Rootkit Capabilities

This Trojan does not have rootkit capabilities.

Information Theft

This Trojan does not have any information-stealing capability.

Other Details

This Trojan does the following:

  • It will access the following URLs to get the arbitrary codes :
    • kyuackua.{BLOCKED}b.com:443
    • kyu.{BLOCKED}o.com:[443/80]
  • This Backdoor create the following process and inject itself to perform its malicious behavior:
    • %Windows%\explorer.exe
    • svchost.exe
    • iexplore.exe
    • explorer.exe
    • %Windows%\system32\svchost.exe
    • %Windows%\SysWOW64\svchost.exe
    • %Windows%\SysWOW64\explorer.exe
    • %Program Files%\Internet Explorer\iexplore.exe

It does not exploit any vulnerability.

NOTES:

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.202.05

FIRST VSAPI PATTERN DATE:

28 Jun 2019

VSAPI OPR PATTERN File:

15.203.00

VSAPI OPR PATTERN Date:

29 Jun 2019

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 Trojan.Win32.PLEAD.AF

[ 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

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.PLEAD.AF. 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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