diff --git a/rules/windows/process_creation/win_susp_rundll32_activity.yml b/rules/windows/process_creation/win_susp_rundll32_activity.yml index d3afc3ee7..f04faf4d7 100644 --- a/rules/windows/process_creation/win_susp_rundll32_activity.yml +++ b/rules/windows/process_creation/win_susp_rundll32_activity.yml @@ -18,26 +18,60 @@ logsource: product: windows detection: selection: - CommandLine|contains: - - 'url.dll*OpenURL' - - 'url.dll*OpenURLA' - - 'url.dll*FileProtocolHandler' - - 'zipfldr.dll*RouteTheCall' - - 'shell32.dll*Control_RunDLL' - - 'shell32.dll*ShellExec_RunDLL' + - CommandLine|contains: - 'javascript:' - '.RegisterXLL' - - 'mshtml.dll*PrintHTML' - - 'advpack.dll*LaunchINFSection' - - 'advpack.dll*RegisterOCX' - - 'ieadvpack.dll*LaunchINFSection' - - 'ieadvpack.dll*RegisterOCX' - - 'ieframe.dll*OpenURL' - - 'shdocvw.dll*OpenURL' - - 'syssetup.dll*SetupInfObjectInstallAction' - - 'setupapi.dll*InstallHinfSection' - - 'pcwutl.dll*LaunchApplication' - - 'dfshim.dll*ShOpenVerbApplication' + - CommandLine|contains|all: + - 'url.dll' + - 'OpenURL' + - CommandLine|contains|all: + - 'url.dll' + - 'OpenURLA' + - CommandLine|contains|all: + - 'url.dll' + - 'FileProtocolHandler' + - CommandLine|contains|all: + - 'zipfldr.dll' + - 'RouteTheCall' + - CommandLine|contains|all: + - 'shell32.dll' + - 'Control_RunDLL' + - CommandLine|contains|all: + - 'shell32.dll' + - 'ShellExec_RunDLL' + - CommandLine|contains|all: + - 'mshtml.dll' + - 'PrintHTML' + - CommandLine|contains|all: + - 'advpack.dll' + - 'LaunchINFSection' + - CommandLine|contains|all: + - 'advpack.dll' + - 'RegisterOCX' + - CommandLine|contains|all: + - 'ieadvpack.dll' + - 'LaunchINFSection' + - CommandLine|contains|all: + - 'ieadvpack.dll' + - 'RegisterOCX' + - CommandLine|contains|all: + - 'ieframe.dll' + - 'OpenURL' + - CommandLine|contains|all: + - 'shdocvw.dll' + - 'OpenURL' + - CommandLine|contains|all: + - 'syssetup.dll' + - SetupInfObjectInstallAction' + - CommandLine|contains|all: + - 'setupapi.dll' + - 'InstallHinfSection' + - CommandLine|contains|all: + - 'pcwutl.dll' + - 'LaunchApplication' + - CommandLine|contains|all: + - 'dfshim.dll' + - 'ShOpenVerbApplication' condition: selection falsepositives: - False positives depend on scripts and administrative tools used in the monitored environment