sublimemediumRule

Link: MyActiveCampaign Link Abuse

Detects messages from myactivecampaign.com containing links and suspicious language that do not exclusively point to activehosted.com domains.

MITRE ATT&CK

T1566 T1566.001 T1566.002 T1598

initial-access

Detection Query

type.inbound
and 0 < length(body.links) < 10
and sender.email.domain.root_domain == "myactivecampaign.com"
and any(ml.nlu_classifier(body.current_thread.text).intents,
        .name == "cred_theft" and .confidence == "high"
)
and not all(body.links, .href_url.domain.root_domain == "activehosted.com")

Data Sources

Email MessagesEmail HeadersEmail Attachments

Platforms

Tags

Attack surface reduction

Raw Content

name: "Link: MyActiveCampaign Link Abuse"
description: "Detects messages from myactivecampaign.com containing links and suspicious language that do not exclusively point to activehosted.com domains."
type: "rule"
severity: "medium"
source: |
  type.inbound
  and 0 < length(body.links) < 10
  and sender.email.domain.root_domain == "myactivecampaign.com"
  and any(ml.nlu_classifier(body.current_thread.text).intents,
          .name == "cred_theft" and .confidence == "high"
  )
  and not all(body.links, .href_url.domain.root_domain == "activehosted.com")
tags:
 - "Attack surface reduction"
attack_types:
  - "Credential Phishing"
tactics_and_techniques:
  - "Social engineering"
detection_methods:
  - "Natural Language Understanding"
  - "URL analysis"
  - "Sender analysis"
id: "f5b91ce5-e239-5ae6-a417-9f0c5eeb47f1"