Detection rules › Sublime MQL

Open redirect: Google Web Light

Severity
medium
Type
rule
Source
github.com/sublime-security/sublime-rules

Message contains use of the Google Web Light open redirect. Google Web Light was sunset on December 19 2022.

Threat classification

Sublime's own taxonomy (not MITRE ATT&CK).

CategoryValues
Attack typesCredential Phishing, Malware/Ransomware
Tactics and techniquesOpen redirect

Event coverage

Rule body MQL

type.inbound
and any(body.links,
        .href_url.domain.root_domain == "googleweblight.com"
        and regex.match(.href_url.query_params, "(lite_url|u)=.*")
)
and (
  not profile.by_sender().solicited
  or profile.by_sender().any_messages_malicious_or_spam
)
and not profile.by_sender().any_messages_benign

Detection logic

Scope: inbound message.

Message contains use of the Google Web Light open redirect. Google Web Light was sunset on December 19 2022.

  1. inbound message
  2. any of body.links where all hold:
    • .href_url.domain.root_domain is 'googleweblight.com'
    • .href_url.query_params matches '(lite_url|u)=.*'
  3. any of:
    • not:
      • profile.by_sender().solicited
    • profile.by_sender().any_messages_malicious_or_spam
  4. not:
    • profile.by_sender().any_messages_benign

Inspects: body.links, body.links[].href_url.domain.root_domain, body.links[].href_url.query_params, type.inbound. Sensors: profile.by_sender, regex.match.

Indicators matched (2)

FieldMatchValue
body.links[].href_url.domain.root_domainequalsgoogleweblight.com
regex.matchregex(lite_url|u)=.*