Analysis by: Henry Alarcon Jr.
ALIASES:

Trojan-UACByPass.a (McAfee), Trojan:Win32/CryptInject (Microsoft), W32/AntiAV.NIZ!tr (Fortinet)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Canal de infección Dropped by other malware

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

Tamaño del archivo 4,608 bytes
Tipo de archivo DLL
Residente en memoria Yes
Fecha de recepción de las muestras iniciales 26 Feb 2019

Arrival Details

This Trojan may be dropped by the following malware:

Other Details

This Trojan does the following:

  • To relaunch a process as resource. ← one of component for UAC bypass using PkgMgr->DISM (DLL hijacking).

  SOLUTION

Motor de exploración mínimo 9.850
Primer archivo de patrones de VSAPI 14.850.04
Primera fecha de publicación de patrones de VSAPI 04 Mar 2019
Versión de patrones OPR de VSAPI 14.851.00
Fecha de publicación de patrones OPR de VSAPI 05 Mar 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

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

Restart in Safe Mode

[ Learn More ]

Step 4

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Trojan.Win32.ANTIAV.AB. 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.

Step 5

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.ANTIAV.AB. 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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