Detectionlowtest

Discovery of a System Time

Identifies use of various commands to query a systems time. This technique may be used before executing a scheduled task or to discover the time zone of a target system.

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Launch
E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.communityCreated Thu Oct 24Updated Tue Jun 28b243b280-65fe-48df-ba07-6ddea7646427windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic2 selectors
detection:
    selection_time:
        Image|endswith:
            - '\net.exe'
            - '\net1.exe'
        CommandLine|contains: 'time'
    selection_w32tm:
        Image|endswith: '\w32tm.exe'
        CommandLine|contains: 'tz'
    condition: 1 of selection_*
False Positives

Legitimate use of the system utilities to discover system time for legitimate reason

Rule Metadata
Rule ID
b243b280-65fe-48df-ba07-6ddea7646427
Status
test
Level
low
Type
Detection
Created
Thu Oct 24
Modified
Tue Jun 28
Path
rules/windows/process_creation/proc_creation_win_remote_time_discovery.yml
Raw Tags
attack.discoveryattack.t1124
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