LOLBAS/yml/OSBinaries/At.yml

---
Name: At.exe
Description: Schedule periodic tasks
Author: 'Freddie Barr-Smith'
Created: 2019-09-20
Commands:
  - Command: C:\Windows\System32\at.exe 09:00 /interactive /every:m,t,w,th,f,s,su C:\Windows\System32\revshell.exe
    Description: Create a recurring task to execute every day at a specific time.
    Usecase: Create a recurring task, to eg. to keep reverse shell session(s) alive
    Category: Execute
    Privileges: Local Admin
    MitreID: T1053.002
    OperatingSystem: Windows 7 or older
Full_Path:
  - Path: C:\WINDOWS\System32\At.exe
  - Path: C:\WINDOWS\SysWOW64\At.exe
Detection:
  - Sigma: https://github.com/SigmaHQ/sigma/blob/ff0f1a0222b5100120ae3e43df18593f904c69c0/rules/windows/process_creation/win_interactive_at.yml
  - Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/network/zeek/zeek_smb_converted_win_atsvc_task.yml
  - Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/builtin/win_atsvc_task.yml
  - IOC: C:\Windows\System32\Tasks\At1 (substitute 1 with subsequent number of at job)
  - IOC: C:\Windows\Tasks\At1.job
  - IOC: Registry Key - Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\At1.
Resources:
  - Link: https://freddiebarrsmith.com/at.txt
  - Link: https://sushant747.gitbooks.io/total-oscp-guide/privilege_escalation_windows.html
  - Link: https://www.secureworks.com/blog/where-you-at-indicators-of-lateral-movement-using-at-exe-on-windows-7-systems
Acknowledgement:
  - Person: 'Freddie Barr-Smith'
    Handle:
  - Person: 'Riccardo Spolaor'
    Handle:
  - Person: 'Mariano Graziano'
    Handle:
  - Person: 'Xabier Ugarte-Pedrero'
    Handle:
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`---`
			`Name: At.exe`
			`Description: Schedule periodic tasks`
			`Author: 'Freddie Barr-Smith'`
Standardise date formats (see https://yaml.org/type/timestamp.html) 2021-01-10 16:04:52 +01:00			`Created: 2019-09-20`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`Commands:`
Remove unnecessary "at" on command (#286) 2023-05-02 00:36:38 +02:00			`- Command: C:\Windows\System32\at.exe 09:00 /interactive /every:m,t,w,th,f,s,su C:\Windows\System32\revshell.exe`
Standardise date formats (see https://yaml.org/type/timestamp.html) 2021-01-10 16:04:52 +01:00			`Description: Create a recurring task to execute every day at a specific time.`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`Usecase: Create a recurring task, to eg. to keep reverse shell session(s) alive`
Standardise date formats (see https://yaml.org/type/timestamp.html) 2021-01-10 16:04:52 +01:00			`Category: Execute`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`Privileges: Local Admin`
Applying more specific subtechniques to At/Schtasks, closes LOLBAS-Project/LOLBAS#113 2021-11-05 20:33:48 +01:00			`MitreID: T1053.002`
Update At.yml 2019-10-07 23:51:26 +02:00			`OperatingSystem: Windows 7 or older`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`Full_Path:`
			`- Path: C:\WINDOWS\System32\At.exe`
			`- Path: C:\WINDOWS\SysWOW64\At.exe`
			`Detection:`
Detection Resources and Other Updates (#179) * Add detection links for scripts * Add detection links for OtherMSBins. Fixed and updated as needed. * Add detection links for MSBins. Fixed and updated as needed. * Add detection links for oslibraries * Updating template for Detections * Removing empty Detection:Sigma entries * Remove redundant blank line * Replacing commit URL with file URL Co-authored-by: root <root@DESKTOP-5CR935D.localdomain> Co-authored-by: Wietze <wietze@users.noreply.github.com> 2021-11-15 14:19:03 +01:00			`- Sigma: https://github.com/SigmaHQ/sigma/blob/ff0f1a0222b5100120ae3e43df18593f904c69c0/rules/windows/process_creation/win_interactive_at.yml`
			`- Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/network/zeek/zeek_smb_converted_win_atsvc_task.yml`
			`- Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/builtin/win_atsvc_task.yml`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`- IOC: C:\Windows\System32\Tasks\At1 (substitute 1 with subsequent number of at job)`
			`- IOC: C:\Windows\Tasks\At1.job`
Standardise date formats (see https://yaml.org/type/timestamp.html) 2021-01-10 16:04:52 +01:00			`- IOC: Registry Key - Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\At1.`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`Resources:`
			`- Link: https://freddiebarrsmith.com/at.txt`
Put schema back to previous state and fixed non-compliant Link in At.yml 2022-09-14 05:06:42 +02:00			`- Link: https://sushant747.gitbooks.io/total-oscp-guide/privilege_escalation_windows.html`
Adding At.exe, for submission to LOLbas list, with proof of malware using it in wild :O 2019-09-21 04:19:25 +02:00			`- Link: https://www.secureworks.com/blog/where-you-at-indicators-of-lateral-movement-using-at-exe-on-windows-7-systems`
			`Acknowledgement:`
Update At.yml 2019-10-07 23:51:26 +02:00			`- Person: 'Freddie Barr-Smith'`
			`Handle:`
			`- Person: 'Riccardo Spolaor'`
			`Handle:`
			`- Person: 'Mariano Graziano'`
			`Handle:`
			`- Person: 'Xabier Ugarte-Pedrero'`
			`Handle:`