Detectionmediumtest

Potential Password Spraying Attempt Using Dsacls.EXE

Detects possible password spraying attempts using Dsacls

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Launch
Nasreddine Bencherchali (Nextron Systems)Created Mon Jun 20Updated Sat Feb 04bac9fb54-2da7-44e9-988f-11e9a5edbc0cwindows
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_img:
        - Image|endswith: '\dsacls.exe'
        - OriginalFileName: "DSACLS.EXE"
    selection_cli:
        CommandLine|contains|all:
            - '/user:'
            - '/passwd:'
    condition: all of selection*
False Positives

Legitimate use of dsacls to bind to an LDAP session

Rule Metadata
Rule ID
bac9fb54-2da7-44e9-988f-11e9a5edbc0c
Status
test
Level
medium
Type
Detection
Created
Mon Jun 20
Modified
Sat Feb 04
Path
rules/windows/process_creation/proc_creation_win_dsacls_password_spray.yml
Raw Tags
attack.defense-evasionattack.t1218
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