Gootloader JavaScript Execution in AppData Folder (RedCanary Threat Detection Report)

 1title: Gootloader JavaScript Execution in AppData Folder (RedCanary Threat Detection Report)
 2id: 5e284df6-3a2e-4ac1-8907-29fdc6b43757
 3status: experimental
 4description: Detects execution of JavaScript (.js) files located in the AppData folder. Part of the RedCanary 2023 Threat Detection Report.
 5references:
 6    - https://redcanary.com/threat-detection-report/threats/gootloader/
 7author: RedCanary, Sigma formatting by Micah Babinski
 8date: 2023/05/10
 9tags:
10    - attack.defense_evasion
11    - attack.t1036
12logsource:
13    category: process_creation
14    product: windows
15detection:
16    selection:
17        Image|endswith: '\wscript.exe'
18        CommandLine|re: '(?i)appdata\\.*\.js'
19    condition: selection
20falsepositives:
21    - Unknown
22level: low```

References

• Gootloader - Red Canary Threat Detection Report

  

  A common entry point for Cobalt Strike into enterprises, Gootloader made significant changes to its execution flow in 2022.

  
  Read More

Related rules

• Potential SysInternals ProcDump Evasion
• Potential Homoglyph Attack Using Lookalike Characters
• Windows Scripting Host Executing JScript Files with MS-DOS Short Names (RedCanary Threat Detection Report)
• Suspicious CodePage Switch Via CHCP
• Process Creation With Double File Extension