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T1681

Technique.View on attack.mitre.org

About this technique

Threat actors may seek information/indicators from closed or open threat intelligence sources gathered about their own campaigns, as well as those conducted by other adversaries that may align with their target industries, capabilities/objectives, or other operational concerns. These reports may include descriptions of behavior, detailed breakdowns of attacks, atomic indicators such as malware hashes or IP addresses, timelines of a group’s activity, and more. Adversaries may change their behavior when planning their future operations.

Adversaries have been observed replacing atomic indicators mentioned in blog posts in under a week. Adversaries have also been seen searching for their own domain names in threat vendor data and then taking them down, likely to avoid seizure or further investigation.

This technique is distinct from Threat Intel Vendors in that it describes threat actors performing reconnaissance on their own activity, not in search of victim information.

Detection rules0

Rules on DetectionCode tagged with T1681.

Sigma0

No Sigma rules are mapped to this technique yet.

Splunk0

No Splunk rules are mapped to this technique yet.

Groups2

Software0

None recorded.

Campaigns0

None recorded.

Procedure examples2

Groups2

Used byProcedure example
GroupContagious Interview

Contagious Interview has registered accounts with Threat Intelligence vendor services to check for reporting associated with their infrastructure and to evaluate new potential infrastructure.

GroupUNC3886

UNC3886 has replaced indicators mentioned in open-source threat intelligence publications at times under a week after their release.

References2

  1. Google Cloud Threat Intelligence VMWare ESXi Zero-Day 2023 Open source
    Alexander Marvi, Brad Slaybaugh, Ron Craft, and Rufus Brown. (2023, June 13). VMware ESXi Zero-Day Used by Chinese Espionage Actor to Perform Privileged Guest Operations on Compromised Hypervisors. Retrieved March 26, 2025.
  2. Sentinel One Contagious Interview ClickFix September 2025 Open source
    Aleksandar Milenkoski, Sreekar Madabushi, Kenneth Kinion. (2025, September 4). Contagious Interview | North Korean Threat Actors Reveal Plans and Ops by Abusing Cyber Intel Platforms. Retrieved October 20, 2025.

Data from MITRE ATT&CK® (Enterprise). ATT&CK® is a registered trademark of The MITRE Corporation.