Query: Sigma rule for Detects execution of WinRAR in order to compress a file with a ".dmp"/".dump" extension, which could be a step in a proc
Matching passage: Sigma rule: Detects execution of WinRAR in order to compress a file with a ".dmp"/".dump" extension, which could be a step in a proc. Logsource: windows / process_creation. Rule: title: Winrar Compressing Dump Files id: 1ac14d38-3dfc-4635-92c7-e3fd1c5f5bfc related: - id: ec570e53-4c76-45a9-804d-dc3f355ff7a7 type: similar status: test description: Detects execution of WinRAR in order to compress a file with a ".dmp"/".dump" extension, which could be a step in a process of dump file exfiltration. references: - https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/ author: Florian Roth (Nextron Systems) date: 2022-01-04 modified: 2023-09-12 tags: - attack.collection - attack.t1560.001 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \rar.exe - \winrar.exe - Description: Command line RAR selection_extension: CommandLine|contains: - .dmp - .dump - .hdmp condition: all of selection_* falsepositives: - Legitimate use of WinRAR with a command line in which ".dmp" or ".dump" appears accidentally - Legitimate use of WinRAR to compress WER ".dmp" files for troubleshooting level: medium
Near-miss passage: Sigma rule: Detects the execution of certutil with certain flags that allow the utility to download files from direct IPs.. Logsource: windows / process_creation. Rule: title: Suspicious File Downloaded From Direct IP Via Certutil.EXE id: 13e6fe51-d478-4c7e-b0f2-6da9b400a829 related: - id: 19b08b1c-861d-4e75-a1ef-ea0c1baf202b type: similar - id: 42a5f1e7-9603-4f6d-97ae-3f37d130d794 type: similar status: test description: Detects the execution of certutil with certain flags that allow the utility to download files from direct IPs. references: - https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/certutil - https://forensicitguy.github.io/agenttesla-vba-certutil-download/ - https://news.sophos.com/en-us/2021/04/13/compromised-exchange-server-hosting-cryptojacker-targeting-other-exchange-servers/ - https://twitter.com/egre55/status/1087685529016193025 - https://lolbas-project.github.io/lolbas/Binaries/Certutil/ - https://twitter.com/_JohnHammond/status/1708910264261980634 - https://www.hexacorn.com/blog/2020/08/23/certutil-one-more-gui-lolbin author: Nasreddine Bencherchali (Nextron Systems) date: 2023-02-15 modified: 2025-12-01 tags: - attack.stealth - attack.t1027 - attack.command-and-control - attack.t1105 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \certutil.exe - OriginalFileName: CertUtil.exe selection_flags: CommandLine|contains: - 'urlcache ' - 'verifyctl ' - 'URL ' selection_http: CommandLine|contains: - ://1 - ://2 - ://3 - ://4 - ://5 - ://6 - ://7 - ://8 - ://9 filter_main_seven_zip: CommandLine|contains: ://7- condition: all of selection_* and not 1 of filter_main_* falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_certutil_download_direct_ip/info.yml