psr.exe
- File Path:
C:\Windows\system32\psr.exe - Description: Steps Recorder
Hashes
| Type | Hash |
|---|---|
| MD5 | 402F1EFF59C025CF3BB134B27CB1E729 |
| SHA1 | 11BF3A146940D214D9BBAD019E17C432F041481C |
| SHA256 | 43BFF52AEC02A3851737CB2DD5799A5196BD0C3EDF30FB482F9F0AA2326910DA |
| SHA384 | 96663EFAA7ED6D337B45F71F883C251F1D423D4AEB33BB6B11EA3CB242051AE8604A0472998163BCB4A8FFC3C8C9A68F |
| SHA512 | 60ACB47B3616C26BC2BBF27F6BE706A7ADFBEB66DDF32C64F2457EBE031F331FBD43E8EE64992B9024DB824392A433894B86CFE80CC06ED2338798F373B45FDF |
| SSDEEP | 6144:z1yxV51DmDVQwwwoHsmbM/NzV/JAVcD8LPhSiWofQr2k5l8BmMxowi/EH1:z1yr5EVoHjbM/WcD8pellpco//EH1 |
| IMP | 12931ABAD86FDA80B59207BCB7A378CA |
| PESHA1 | A289A8982856FC4AD5D898D840C220D444D77AAD |
| PE256 | 4D1FAD768148DEDEA18F108FCD190EF7B60787D11BC711F9E117A57098E11496 |
Signature
- Status: Signature verified.
- Serial:
3300000266BD1580EFA75CD6D3000000000266 - Thumbprint:
A4341B9FD50FB9964283220A36A1EF6F6FAA7840 - 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.mui
- Product Name: Microsoft Windows Operating System
- Company Name: Microsoft Corporation
- File Version: 10.0.17763.1 (WinBuild.160101.0800)
- Product Version: 10.0.17763.1
- Language: English (United States)
- Legal Copyright: Microsoft Corporation. All rights reserved.
- Machine Type: 64-bit
File Scan
- VirusTotal Detections: 0/72
- VirusTotal Link: https://www.virustotal.com/gui/file/43bff52aec02a3851737cb2dd5799a5196bd0c3edf30fb482f9f0aa2326910da/detection/
File Similarity (ssdeep match)
| File | Score |
|---|---|
| C:\windows\system32\psr.exe | 60 |
| C:\Windows\system32\psr.exe | 60 |
| C:\windows\SysWOW64\psr.exe | 68 |
| C:\Windows\SysWOW64\psr.exe | 60 |
| C:\Windows\SysWOW64\psr.exe | 65 |
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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