Sigma rule: Remote Access Tool - ScreenConnect Potential Suspicious Remote Command Execution

Rule

Title

Remote Access Tool - ScreenConnect Potential Suspicious Remote Command Execution

Status

test

Level

medium

Author

Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems), @Kostastsale

Date

2022-02-25

Modified

2024-02-28

File

rules/windows/process_creation/proc_creation_win_remote_access_tools_screenconnect_remote_execution_susp.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potentially suspicious child processes launched via the ScreenConnect client service.

Log source

product

windows

category

process_creation

Detection

selection:
    ParentCommandLine|contains|all:
        - ':\Windows\TEMP\ScreenConnect\'
        - 'run.cmd'
    Image|endswith:
        - '\bitsadmin.exe'
        - '\cmd.exe'
        - '\curl.exe'
        - '\dllhost.exe'
        - '\net.exe'
        - '\nltest.exe'
        - '\powershell.exe'
        - '\pwsh.exe'
        - '\rundll32.exe'
        - '\wevtutil.exe'
condition: selection

False positives (as the rule lists them)

• If the script being executed make use of any of the utilities mentioned in the detection then they should filtered out or allowed.

Tags

• attack.command-and-control
• attack.t1219.002

MITRE ATT&CK ids this rule names

• T1219.002

Related rules

• d1a401ab-8c47-4e86-a7d8-2460b6a53e4a (derived)

References

• https://www.mandiant.com/resources/telegram-malware-iranian-espionage
• https://docs.connectwise.com/ConnectWise_Control_Documentation/Get_started/Host_client/View_menu/Backstage_mode
• https://www.huntress.com/blog/slashandgrab-screen-connect-post-exploitation-in-the-wild-cve-2024-1709-cve-2024-1708
• https://www.trendmicro.com/en_us/research/24/b/threat-actor-groups-including-black-basta-are-exploiting-recent-.html

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_remote_access_tools_screenconnect_remote_execution_susp.yml