Suspicious Network Communication With IPFS

 1title: Suspicious Network Communication With IPFS
 2id: eb6c2004-1cef-427f-8885-9042974e5eb6
 3status: test
 4description: Detects connections to interplanetary file system (IPFS) containing a user's email address which mirrors behaviours observed in recent phishing campaigns leveraging IPFS to host credential harvesting webpages.
 5references:
 6    - https://blog.talosintelligence.com/ipfs-abuse/
 7    - https://github.com/Cisco-Talos/IOCs/tree/80caca039988252fbb3f27a2e89c2f2917f582e0/2022/11
 8    - https://isc.sans.edu/diary/IPFS%20phishing%20and%20the%20need%20for%20correctly%20set%20HTTP%20security%20headers/29638
 9author: Gavin Knapp
10date: 2023-03-16
11tags:
12    - attack.credential-access
13    - attack.t1056
14logsource:
15    category: proxy
16detection:
17    selection:
18        cs-uri|re: '(?i)(ipfs\.io/|ipfs\.io\s).+\..+@.+\.[a-z]+'
19    condition: selection
20falsepositives:
21    - Legitimate use of IPFS being used in the organisation. However the cs-uri regex looking for a user email will likely negate this.
22level: low

References

• Threat Spotlight: Cyber Criminal Adoption of IPFS for Phishing, Malware Campaigns

  

  * The InterPlanetary File System (IPFS) is an emerging Web3 technology that is currently seeing widespread abuse by threat actors. * Cisco Talos has observed multiple ongoing campaigns that leverage the IPFS network to host their malware payloads and phishing kit infrastructure while facilitating other attacks. * IPFS is often used for legitimate

  
  Read More

• IOCs/2022/11 at 80caca039988252fbb3f27a2e89c2f2917f582e0 · Cisco-Talos/IOCs

  

  Indicators of Compromise. Contribute to Cisco-Talos/IOCs development by creating an account on GitHub.

  
  Read More

• IPFS phishing and the need for correctly set HTTP security headers - SANS Internet Storm Center

  

  IPFS phishing and the need for correctly set HTTP security headers, Author: Jan Kopriva

  
  Read More

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