Detectionmediumtest

Potential Binary Proxy Execution Via Cdb.EXE

Detects usage of "cdb.exe" to launch arbitrary processes or commands from a debugger script file

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Launch
Beyu Denis, oscd.community, Nasreddine Bencherchali (Nextron Systems)Created Sat Oct 26Updated Mon Apr 22b5c7395f-e501-4a08-94d4-57fe7a9da9d2windows
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: '\cdb.exe'
        - OriginalFileName: 'CDB.Exe'
    selection_cli:
        CommandLine|contains:
            - ' -c ' # Using a debugger script
            - ' -cf '
    condition: all of selection*
False Positives

Legitimate use of debugging tools

Rule Metadata
Rule ID
b5c7395f-e501-4a08-94d4-57fe7a9da9d2
Status
test
Level
medium
Type
Detection
Created
Sat Oct 26
Modified
Mon Apr 22
Path
rules/windows/process_creation/proc_creation_win_cdb_arbitrary_command_execution.yml
Raw Tags
attack.executionattack.t1106attack.defense-evasionattack.t1218attack.t1127
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