108 lines
3.2 KiB
YAML
108 lines
3.2 KiB
YAML
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title: Suspicious Rundll32 Activity
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author: juju4, Jonhnathan Ribeiro, oscd.community
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date: 2019/01/16
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description: Detects suspicious process related to rundll32 based on arguments
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_10:
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CommandLine: '*RouteTheCall*'
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SELECTION_11:
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CommandLine: '*shell32.dll*'
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SELECTION_12:
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CommandLine: '*Control_RunDLL*'
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SELECTION_13:
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CommandLine: '*shell32.dll*'
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SELECTION_14:
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CommandLine: '*ShellExec_RunDLL*'
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SELECTION_15:
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CommandLine: '*mshtml.dll*'
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SELECTION_16:
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CommandLine: '*PrintHTML*'
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SELECTION_17:
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CommandLine: '*advpack.dll*'
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SELECTION_18:
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CommandLine: '*LaunchINFSection*'
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SELECTION_19:
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CommandLine: '*advpack.dll*'
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SELECTION_2:
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CommandLine:
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- '*javascript:*'
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- '*.RegisterXLL*'
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SELECTION_20:
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CommandLine: '*RegisterOCX*'
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SELECTION_21:
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CommandLine: '*ieadvpack.dll*'
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SELECTION_22:
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CommandLine: '*LaunchINFSection*'
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SELECTION_23:
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CommandLine: '*ieadvpack.dll*'
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SELECTION_24:
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CommandLine: '*RegisterOCX*'
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SELECTION_25:
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CommandLine: '*ieframe.dll*'
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SELECTION_26:
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CommandLine: '*OpenURL*'
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SELECTION_27:
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CommandLine: '*shdocvw.dll*'
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SELECTION_28:
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CommandLine: '*OpenURL*'
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SELECTION_29:
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CommandLine: '*syssetup.dll*'
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SELECTION_3:
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CommandLine: '*url.dll*'
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SELECTION_30:
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CommandLine: "*SetupInfObjectInstallAction'*"
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SELECTION_31:
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CommandLine: '*setupapi.dll*'
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SELECTION_32:
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CommandLine: '*InstallHinfSection*'
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SELECTION_33:
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CommandLine: '*pcwutl.dll*'
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SELECTION_34:
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CommandLine: '*LaunchApplication*'
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SELECTION_35:
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CommandLine: '*dfshim.dll*'
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SELECTION_36:
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CommandLine: '*ShOpenVerbApplication*'
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SELECTION_4:
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CommandLine: '*OpenURL*'
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SELECTION_5:
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CommandLine: '*url.dll*'
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SELECTION_6:
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CommandLine: '*OpenURLA*'
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SELECTION_7:
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CommandLine: '*url.dll*'
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SELECTION_8:
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CommandLine: '*FileProtocolHandler*'
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SELECTION_9:
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CommandLine: '*zipfldr.dll*'
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condition: (SELECTION_1 and (SELECTION_2 or (SELECTION_3 and SELECTION_4) or (SELECTION_5
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and SELECTION_6) or (SELECTION_7 and SELECTION_8) or (SELECTION_9 and SELECTION_10)
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or (SELECTION_11 and SELECTION_12) or (SELECTION_13 and SELECTION_14) or (SELECTION_15
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and SELECTION_16) or (SELECTION_17 and SELECTION_18) or (SELECTION_19 and SELECTION_20)
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or (SELECTION_21 and SELECTION_22) or (SELECTION_23 and SELECTION_24) or (SELECTION_25
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and SELECTION_26) or (SELECTION_27 and SELECTION_28) or (SELECTION_29 and SELECTION_30)
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or (SELECTION_31 and SELECTION_32) or (SELECTION_33 and SELECTION_34) or (SELECTION_35
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and SELECTION_36)))
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falsepositives:
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- False positives depend on scripts and administrative tools used in the monitored
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environment
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id: e593cf51-88db-4ee1-b920-37e89012a3c9
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level: medium
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logsource:
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category: process_creation
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product: windows
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references:
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- http://www.hexacorn.com/blog/2017/05/01/running-programs-via-proxy-jumping-on-a-edr-bypass-trampoline/
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- https://twitter.com/Hexacorn/status/885258886428725250
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- https://gist.github.com/ryhanson/227229866af52e2d963cf941af135a52
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status: experimental
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tags:
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- attack.defense_evasion
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- attack.execution
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- attack.t1218.011
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- attack.t1085
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ruletype: SIGMA
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