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Microsoft Teams Lookalikes in Search Ads: Detection & IOCs

Attackers reach lookalike Teams domains via sponsored ads, an AI search answer and SEO poisoning. 9 detection rules, 9 IOCs and a free Splunk SPL rule.

Read the full threat intel for Microsoft Teams Lookalikes in Search Ads: Detection & IOCs →

Chapters

  1. 0:00The hook3 lookalike Teams domains, reached through search.
  2. 0:04The storyCloned Teams pages on lookalike domains.
  3. 0:10Attack pathLookalike domain registered, sponsored search ads.
  4. 0:26AttributionNo threat actor is attributed.
  5. 0:31Indicators of compromise5 indicators to hunt: 4 domains and 1 file name.
  6. 0:36MITRE ATT&CK techniques7 ATT&CK techniques, from resource development to stealth.
  7. 0:41Remediation4 steps now: Block teams-online[.]com, teams-livemeeting[.]com and teams-cloud[.]live in DNS and web filtering.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:003 lookalike Teams domains, reached through search.

0:05Cloned Teams pages on lookalike domains.

0:08Search, not email, delivered them.

0:11Lookalike domain registered, sponsored search ads.

0:14AI answers and rank added reach.

0:17Cloned Teams pre-join page hosted.

0:19Fake update prompt downloads a staged lure.

0:22Reported aim: work credentials.

0:27No threat actor is attributed. Confidence: low.

0:315 indicators to hunt: 4 domains and 1 file name.

0:377 ATT&CK techniques, from resource development to stealth.

0:414 steps now: Block teams-online[.]com, teams-livemeeting[.]com and teams-cloud[.]live in DNS and web filtering.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.