Query: alert when Detects the use of iexpress.exe to create binaries via Self Extraction Directive (SED) files located in potentially susp
Matching passage: Sigma rule: Detects the use of iexpress.exe to create binaries via Self Extraction Directive (SED) files located in potentially susp. Logsource: windows / process_creation. Rule: title: Self Extracting Package Creation Via Iexpress.EXE From Potentially Suspicious Location id: b2b048b0-7857-4380-b0fb-d3f0ab820b71 status: test description: 'Detects the use of iexpress.exe to create binaries via Self Extraction Directive (SED) files located in potentially suspicious locations. This behavior has been observed in-the-wild by different threat actors. ' references: - https://strontic.github.io/xcyclopedia/library/iexpress.exe-D594B2A33EFAFD0EABF09E3FDC05FCEA.html - https://en.wikipedia.org/wiki/IExpress - https://decoded.avast.io/janvojtesek/raspberry-robins-roshtyak-a-little-lesson-in-trickery/ - https://www.virustotal.com/gui/file/602f4ae507fa8de57ada079adff25a6c2a899bd25cd092d0af7e62cdb619c93c/behavior author: Joseliyo Sanchez, @Joseliyo_Jstnk, Nasreddine Bencherchali (Nextron Systems) date: 2024-02-05 modified: 2024-06-04 tags: - attack.stealth - attack.t1218 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \iexpress.exe - OriginalFileName: IEXPRESS.exe selection_cli: CommandLine|contains|windash: ' /n ' selection_paths: CommandLine|contains: - :\ProgramData\ - :\Temp\ - :\Windows\System32\Tasks\ - :\Windows\Tasks\ - :\Windows\Temp\ - \AppData\Local\Temp\ condition: all of selection_* falsepositives: - Administrators building packages using iexpress.exe level: high
Near-miss passage: Sigma rule: Detects WMIC executing "process call create" with suspicious calls to processes such as "rundll32", "regsrv32", etc.. Logsource: windows / process_creation. Rule: title: Suspicious Process Created Via Wmic.EXE id: 3c89a1e8-0fba-449e-8f1b-8409d6267ec8 related: - id: 526be59f-a573-4eea-b5f7-f0973207634d type: derived status: test description: Detects WMIC executing "process call create" with suspicious calls to processes such as "rundll32", "regsrv32", etc. references: - https://thedfirreport.com/2020/10/08/ryuks-return/ - https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/ransomware-hive-conti-avoslocker author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) date: 2020-10-12 modified: 2023-02-14 tags: - attack.execution - attack.t1047 logsource: category: process_creation product: windows detection: selection: CommandLine|contains|all: - 'process ' - 'call ' - 'create ' CommandLine|contains: - rundll32 - bitsadmin - regsvr32 - 'cmd.exe /c ' - 'cmd.exe /k ' - 'cmd.exe /r ' - 'cmd /c ' - 'cmd /k ' - 'cmd /r ' - powershell - pwsh - certutil - cscript - wscript - mshta - \Users\Public\ - \Windows\Temp\ - \AppData\Local\ - '%temp%' - '%tmp%' - '%ProgramData%' - '%appdata%' - '%comspec%' - '%localappdata%' condition: selection falsepositives: - Unknown level: high simulation: - type: atomic red team name: WMI Execute rundll32 technique: T1047 atomic_guid: 00738d2a-4651-4d76-adf2-c43a41dfb243 regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_wmic_susp_process_creation/info.yml