Sigma rule: Uncommon Process Access Rights For Target Image

Rule

Title

Uncommon Process Access Rights For Target Image

Status

test

Level

low

Author

Nasreddine Bencherchali (Nextron Systems), frack113

Date

2024-05-27

File

rules/windows/process_access/proc_access_win_susp_all_access_uncommon_target.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects process access request to uncommon target images with a "PROCESS_ALL_ACCESS" access mask.

Log source

product

windows

category

process_access

Detection

selection:
    TargetImage|endswith:
        # Note: Add additional uncommon targets to increase coverage.
        - '\calc.exe'
        - '\calculator.exe'
        - '\mspaint.exe'
        - '\notepad.exe'
        - '\ping.exe'
        - '\wordpad.exe'
        - '\write.exe'
    GrantedAccess: '0x1FFFFF' # PROCESS_ALL_ACCESS - All possible access rights for a process object.
condition: selection

False positives (as the rule lists them)

• Unknown

Tags

• attack.privilege-escalation
• attack.stealth
• attack.t1055.011

MITRE ATT&CK ids this rule names

• T1055.011

References

• https://learn.microsoft.com/en-us/windows/win32/procthread/process-security-and-access-rights

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_access/proc_access_win_susp_all_access_uncommon_target.yml