CmdID / Rules / Windows

Potential Windows Defender AV Bypass Via Dump64.EXE Rename

A Sigma rule for process creation on Windows, by Austin Songer @austinsonger, Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems).

high 1 ATT&CK technique 1 program it names

What it looks for

its detection, as SigmaHQ writes it

detection:
  selection_dump:
    Image|contains: '\Microsoft Visual Studio\'
    Image|endswith: '\dump64.exe'
    Image|startswith: 'C:\Program Files'
  selection_tools_procdump:
    - OriginalFileName: 'procdump'
    - CommandLine|contains:
        - ' -ma '
        - ' -mp '
  condition: selection_dump and 1 of selection_tools_*

The rule’s detection, its selections and fields in order of name. The whole rule, with its references and false positives, is on SigmaHQ, by Austin Songer @austinsonger, Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems), under the Detection Rule License 1.1. CmdID evaluates it on a command line alone: a test on what a command line cannot show, such as the parent process or the user, is not met.

None of the everyday examples and documented commands on CmdID’s program pages trips it. To see whether a command line does, paste it into CmdID.

Programs and files it names

their pages here

dump64.exe

ATT&CK

the techniques it is tagged with

T1003.001OS Credential Dumping: LSASS Memory

Potential Windows Defender AV Bypass Via Dump64.EXE Rename

What it looks for

Programs and files it names

ATT&CK

Other rules for T1003.001 OS Credential Dumping: LSASS Memory