Taskmgr.exe

  • File Path: C:\WINDOWS\SysWOW64\Taskmgr.exe
  • Description: Task Manager

Screenshot

Taskmgr.exe

Hashes

Type Hash
MD5 34D12EFFD7F0F3E6EADFF8F495A99CA8
SHA1 5AA60A51CE663FA10AC44D39C12C65EF857295CC
SHA256 F7610C1D3EB0462C38982C2AAF48A1FC5DEDB73131651EAF3ED3A0EF45EC1B1D
SHA384 16E032682ACCFBE75A5A22B30947B6AA714BB5BA6CA0F06BB827AD43154C7D3BF8FC13C421E9545E1C35C289F044FB21
SHA512 886746E36BE23E20F5D99A143B386D688A6C7D5FBE163AED1E0F8FF3B5FC36CB1AF10E1B83D54320420B1D02E6366AADBBE52CD23DA2448D3CC94BB7E9F36A61
SSDEEP 24576:LK4GZ7mq3XJ9VwyeqwS+on+HtZACaxNh8yd+B:LK487H3vneNzACaV8yd+B

Signature

  • Status: Signature verified.
  • Serial: 330000023241FB59996DCC4DFF000000000232
  • Thumbprint: FF82BC38E1DA5E596DF374C53E3617F7EDA36B06
  • Issuer: CN=Microsoft Windows Production PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
  • Subject: CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

  • Original Filename: Taskmgr.exe
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 10.0.18362.693 (WinBuild.160101.0800)
  • Product Version: 10.0.18362.693
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.

Possible Misuse

The following table contains possible examples of Taskmgr.exe being misused. While Taskmgr.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.

Source Source File Example License
sigma win_susp_lsass_dump_generic.yml - '\taskmgr.exe' DRL 1.0
sigma win_alert_lsass_access.yml - 'C:\Windows\System32\Taskmgr.exe' DRL 1.0
sigma win_alert_lsass_access.yml - Some Taskmgr.exe related activity DRL 1.0
sigma file_event_win_creation_system_file.yml - '\Taskmgr.exe' DRL 1.0
sigma file_event_win_creation_system_file.yml - '\taskmgr.exe' DRL 1.0
sigma proc_access_win_cred_dump_lsass_access.yml - 'C:\WINDOWS\system32\taskmgr.exe' DRL 1.0
sigma proc_access_win_cred_dump_lsass_access.yml # - '\taskmgr.exe' DRL 1.0
sigma proc_access_win_lsass_memdump.yml description: Detects process LSASS memory dump using Mimikatz, NanoDump, Invoke-Mimikatz, Procdump or Taskmgr based on the CallTrace pointing to ntdll.dll, dbghelp.dll or dbgcore.dll for win10, server2016 and up. DRL 1.0
sigma proc_access_win_lsass_memdump.yml - https://blog.menasec.net/2019/02/threat-hunting-21-procdump-or-taskmgr.html DRL 1.0
sigma proc_access_win_susp_proc_access_lsass.yml - 'C:\WINDOWS\system32\taskmgr.exe' DRL 1.0
sigma proc_creation_win_ransom_blackbyte.yml - 'del C:\Windows\System32\Taskmgr.exe' DRL 1.0
sigma proc_creation_win_susp_spoolsv_child_processes.yml - \taskmgr.exe DRL 1.0
sigma proc_creation_win_susp_taskmgr_localsystem.yml title: Taskmgr as LOCAL_SYSTEM DRL 1.0
sigma proc_creation_win_susp_taskmgr_localsystem.yml description: Detects the creation of taskmgr.exe process in context of LOCAL_SYSTEM DRL 1.0
sigma proc_creation_win_susp_taskmgr_localsystem.yml Image\|endswith: '\taskmgr.exe' DRL 1.0
sigma proc_creation_win_susp_taskmgr_parent.yml title: Taskmgr as Parent DRL 1.0
sigma proc_creation_win_susp_taskmgr_parent.yml ParentImage\|endswith: '\taskmgr.exe' DRL 1.0
sigma proc_creation_win_susp_taskmgr_parent.yml - '\taskmgr.exe' DRL 1.0
sigma proc_creation_win_system_exe_anomaly.yml - '\Taskmgr.exe' DRL 1.0
signature-base crime_cn_campaign_njrat.yar $a3 = “taskkill /f /im taskmgr.exe” fullword ascii CC BY-NC 4.0
signature-base gen_cn_hacktools.yar $s2 = “Kiwi Taskmgr no-gpo” fullword wide CC BY-NC 4.0
signature-base thor_inverse_matches.yar description = “Anomaly rule looking for certain strings in a system file (maybe false positive on certain systems) - file taskmgr.exe” CC BY-NC 4.0
signature-base thor_inverse_matches.yar $s1 = “taskmgr.chm” fullword CC BY-NC 4.0
signature-base thor_inverse_matches.yar ( filename == “taskmgr.exe” or filename == “Taskmgr.exe” ) and not 1 of ($s*) and not WINDOWS_UPDATE_BDC CC BY-NC 4.0

MIT License. Copyright (c) 2020-2021 Strontic.