endpoint(opens in a new tab or window)
windows(opens in a new tab or window)
system(opens in a new tab or window)
m365_defender(opens in a new tab or window)
process where host.os.type == "windows" and event.type == "start" and
process.executable : (
"C:\\*Program*Files*\\*.exe",
"\\Device\\HarddiskVolume?\\*Program*Files*\\*.exe"
) and
not process.executable : (
"?:\\Program Files\\*.exe",
"?:\\Program Files (x86)\\*.exe",
"?:\\Users\\*.exe",
"?:\\ProgramData\\*.exe",
"?:\\Windows\\Downloaded Program Files\\*.exe",
"?:\\Windows\\Temp\\.opera\\????????????\\CProgram?FilesOpera*\\*.exe",
"?:\\Windows\\Temp\\.opera\\????????????\\CProgram?Files?(x86)Opera*\\*.exe"
) and
not (
event.dataset == "crowdstrike.fdr" and
process.executable : (
"\\Device\\HarddiskVolume?\\Program Files\\*.exe",
"\\Device\\HarddiskVolume?\\Program Files (x86)\\*.exe",
"\\Device\\HarddiskVolume?\\Users\\*.exe",
"\\Device\\HarddiskVolume?\\ProgramData\\*.exe",
"\\Device\\HarddiskVolume?\\Windows\\Downloaded Program Files\\*.exe",
"\\Device\\HarddiskVolume?\\Windows\\Temp\\.opera\\????????????\\CProgram?FilesOpera*\\*.exe",
"\\Device\\HarddiskVolume?\\Windows\\Temp\\.opera\\????????????\\CProgram?Files?(x86)Opera*\\*.exe"
)
)
Install detection rules in Elastic Security
Detect Program Files Directory Masquerading in the Elastic Security detection engine by installing this rule into your Elastic Stack.
To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).