file where host.os.type == "windows" and
event.provider == "Microsoft-Windows-Sysmon" and
/* File creation time change */
event.code == "2" and
not process.executable :
("?:\\Program Files\\*",
"?:\\Program Files (x86)\\*",
"?:\\Windows\\system32\\cleanmgr.exe",
"?:\\Windows\\system32\\msiexec.exe",
"?:\\Windows\\syswow64\\msiexec.exe",
"?:\\Windows\\system32\\svchost.exe",
"?:\\WINDOWS\\system32\\backgroundTaskHost.exe",
"?:\\Users\\*\\AppData\\Local\\Google\\Chrome\\Application\\chrome.exe",
"?:\\Users\\*\\AppData\\Local\\Mozilla Firefox\\firefox.exe",
"?:\\Users\\*\\AppData\\Local\\slack\\app-*\\slack.exe",
"?:\\Users\\*\\AppData\\Local\\GitHubDesktop\\app-*\\GitHubDesktop.exe",
"?:\\Users\\*\\AppData\\Local\\Microsoft\\Teams\\current\\Teams.exe",
"?:\\Users\\*\\AppData\\Local\\Microsoft\\OneDrive\\OneDrive.exe") and
not file.extension : ("temp", "tmp", "~tmp", "xml", "newcfg") and not user.name : ("SYSTEM", "Local Service", "Network Service") and
not file.name : ("LOG", "temp-index", "license.rtf", "iconcache_*.db")
Install detection rules in Elastic Security
Detect File Creation Time Changed 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).