Query: Sigma rule for Detects suspicious usage of the ShellExec_RunDLL function to launch other commands as seen in the the raspberry-robin at
Matching passage: Sigma rule: Detects suspicious usage of the ShellExec_RunDLL function to launch other commands as seen in the the raspberry-robin at. Logsource: windows / process_creation. Rule: title: Suspicious Usage Of ShellExec_RunDLL id: d87bd452-6da1-456e-8155-7dc988157b7d related: - id: 36c5146c-d127-4f85-8e21-01bf62355d5a type: obsolete - id: 8823e85d-31d8-473e-b7f4-92da070f0fc6 type: similar status: test description: Detects suspicious usage of the ShellExec_RunDLL function to launch other commands as seen in the the raspberry-robin attack references: - https://redcanary.com/blog/raspberry-robin/ - https://www.microsoft.com/en-us/security/blog/2022/10/27/raspberry-robin-worm-part-of-larger-ecosystem-facilitating-pre-ransomware-activity/ - https://github.com/SigmaHQ/sigma/issues/1009 author: Nasreddine Bencherchali (Nextron Systems) date: 2022-09-01 modified: 2022-12-30 tags: - attack.stealth logsource: category: process_creation product: windows detection: selection_openasrundll: CommandLine|contains: ShellExec_RunDLL selection_suspcli: CommandLine|contains: - \Desktop\ - \Temp\ - \Users\Public\ - comspec - iex - Invoke- - msiexec - odbcconf - regsvr32 condition: all of selection_* falsepositives: - Unknown level: high
Near-miss passage: Sigma rule: Detects loading of known malicious drivers via the file name of the drivers.. Logsource: windows / driver_load. Rule: title: Malicious Driver Load By Name id: 39b64854-5497-4b57-a448-40977b8c9679 status: test description: Detects loading of known malicious drivers via the file name of the drivers. references: - https://loldrivers.io/ author: Nasreddine Bencherchali (Nextron Systems) date: 2022-10-03 modified: 2023-12-02 tags: - attack.persistence - attack.privilege-escalation - attack.t1543.003 - attack.t1068 logsource: product: windows category: driver_load detection: selection: ImageLoaded|endswith: - \wfshbr64.sys - \ktmutil7odm.sys - \ktes.sys - \a26363e7b02b13f2b8d697abb90cd5c3.sys - \kt2.sys - \4748696211bd56c2d93c21cab91e82a5.sys - \malicious.sys - \a236e7d654cd932b7d11cb604629a2d0.sys - \spwizimgvt.sys - \c94f405c5929cfcccc8ad00b42c95083.sys - \fur.sys - \wantd.sys - \windbg.sys - \4118b86e490aed091b1a219dba45f332.sys - \gmer64.sys - \1fc7aeeff3ab19004d2e53eae8160ab1.sys - \poortry2.sys - \wintapix.sys - \daxin_blank6.sys - \6771b13a53b9c7449d4891e427735ea2.sys - \blacklotus_driver.sys - \air_system10.sys - \dkrtk.sys - \7.sys - \sense5ext.sys - \ktgn.sys - \ndislan.sys - \nlslexicons0024uvn.sys - \be6318413160e589080df02bb3ca6e6a.sys - \4.sys - \wantd_2.sys - \e29f6311ae87542b3d693c1f38e4e3ad.sys - \daxin_blank3.sys - \gftkyj64.sys - \daxin_blank2.sys - \wantd_4.sys - \reddriver.sys - \834761775.sys - \mlgbbiicaihflrnh.sys - \mjj0ge.sys - \daxin_blank.sys - \daxin_blank5.sys - \poortry1.sys - \msqpq.sys - \mimidrv.sys - \e939448b28a4edc81f1f974cebf6e7d2.sys - \prokiller64.sys - \nodedriver.sys - \wantd_3.sys - \lctka.sys - \kapchelper_x64.sys - \daxin_blank4.sys - \a9df5964635ef8bd567ae487c3d214c4.sys - \wantd_6.sys - \ntbios.sys - \wantd_5.sys - \pciecubed.sys - \mimikatz.sys - \nqrmq.sys - \2.sys - \poortry.sys - \ntbios_2.sys - \fgme.sys - \telephonuafy.sys - \typelibde.sys - \daxin_blank1.sys - \ef0e1725aaf0c6c972593f860531a2ea.sys - \5a4fe297c7d42539303137b6d75b150d.sys condition: selection falsepositives: - False positives may occur if one of the vulnerable driver names mentioned above didn't change its name between versions. So always make sure that the driver being loaded is the legitimate one and the non vulnerable version. - If you experience a lot of FP you could comment the driver name or its exact known legitimate location (when possible) level: medium