psr.exe

  • File Path: C:\WINDOWS\SysWOW64\psr.exe
  • Description: Steps Recorder

Hashes

Type Hash
MD5 1AA5BCE93A418B811DF9AE0DBA8DB6C6
SHA1 46752DDCE861524C0FB0029641AA3FC235728E07
SHA256 51A76E0E6F76A65CBB09084B03B4BD958C81C877C6833ECAA118A451CDC2DBC9
SHA384 C2A2E5591D3707AD90DB6DFFF747AF5035F8409D16126331712B3B58F41B664A6427F94CB4AF9E21B9AF55372C5F752F
SHA512 C28AD59D89CECD2FBD9DD4BD768C117DD3FEA4A4DAF9C724323D7666BAB6B5ED50F25435ECB72952CF42A713232D319078540CC9EFFEFDDAA673ABCA2769EEEC
SSDEEP 3072:/I61pJa1ik1Bdaw2CBvaaFNIt4Ja7rxWF7HoO8qE8:rciGdiCBvBF6yaPx27IOO
IMP 2E5FD6B8059B0A606D0F5D6ECE797554
PESHA1 4879F68A612B78D90C10B85CE235370ADE240265
PE256 24F7E326C124878CDE2969BCB5E20B6821BF02EE76C28962572140213CDBFB5F

Signature

  • Status: Signature verified.
  • Serial: 33000002ED2C45E4C145CF48440000000002ED
  • Thumbprint: 312860D2047EB81F8F58C29FF19ECDB4C634CF6A
  • 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: psr.exe
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 10.0.22000.1 (WinBuild.160101.0800)
  • Product Version: 10.0.22000.1
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.
  • Machine Type: 32-bit

File Scan

  • VirusTotal Detections: 0/73
  • VirusTotal Link: https://www.virustotal.com/gui/file/51a76e0e6f76a65cbb09084b03b4bd958c81c877c6833ecaa118a451cdc2dbc9/detection

Possible Misuse

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

Source Source File Example License
sigma proc_creation_win_susp_psr_capture_screenshots.yml title: Psr.exe Capture Screenshots DRL 1.0
sigma proc_creation_win_susp_psr_capture_screenshots.yml description: The psr.exe captures desktop screenshots and saves them on the local machine DRL 1.0
sigma proc_creation_win_susp_psr_capture_screenshots.yml Image\|endswith: '\Psr.exe' DRL 1.0
LOLBAS Psr.yml Name: Psr.exe  
LOLBAS Psr.yml - Command: psr.exe /start /gui 0 /output c:\users\user\out.zip  
LOLBAS Psr.yml - Command: psr.exe /start /maxsc 100 /gui 0 /output c:\users\user\out.zip  
LOLBAS Psr.yml - Command: psr.exe /stop  
LOLBAS Psr.yml - C:\Windows\System32\Psr.exe  
LOLBAS Psr.yml - C:\Windows\SysWOW64\Psr.exe  
LOLBAS Psr.yml Name: Psr.exe  
LOLBAS Psr.yml - Command: psr.exe /start /output D:\test.zip /sc 1 /gui 0  
LOLBAS Psr.yml Description: Record a user screen without creating a GUI. You should use "psr.exe /stop" to stop recording and create output file.  
LOLBAS Psr.yml - Path: c:\windows\system32\psr.exe  
LOLBAS Psr.yml - Path: c:\windows\syswow64\psr.exe  
LOLBAS Psr.yml - IOC: psr.exe spawned  
atomic-red-team T1113.md Use Psr.exe binary to collect screenshots of user display. Test will do left mouse click to simulate user behaviour MIT License. © 2018 Red Canary
atomic-red-team T1113.md cmd /c start /b psr.exe /start /output #{output_file} /sc 1 /gui 0 /stopevent 12 MIT License. © 2018 Red Canary
atomic-red-team T1113.md cmd /c “timeout #{recording_time} > NULL && psr.exe /stop” MIT License. © 2018 Red Canary

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