Detection rules › Sublime MQL
Open redirect: Avast
Detects emails containing links to avast.com leveraging an open redirect
Threat classification
Sublime's own taxonomy (not MITRE ATT&CK).
| Category | Values |
|---|---|
| Attack types | Credential Phishing, Malware/Ransomware |
| Tactics and techniques | Open redirect |
Event coverage
| Message attribute |
|---|
| body |
| body.links (collection) |
| sender.email |
| type |
Rule body MQL
type.inbound
and any(body.links,
.href_url.domain.root_domain == "avast.com"
and strings.contains(.href_url.query_params,
"DisplayRedirectCustomPage"
)
)
and sender.email.domain.root_domain != "avast.com"
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.
Detects emails containing links to avast.com leveraging an open redirect
- inbound message
any of
body.linkswhere all hold:- .href_url.domain.root_domain is 'avast.com'
- .href_url.query_params contains 'DisplayRedirectCustomPage'
- sender.email.domain.root_domain is not 'avast.com'
any of:
not:
- profile.by_sender().solicited
all of:
- profile.by_sender().any_messages_malicious_or_spam
not:
- profile.by_sender().any_messages_benign
Inspects: body.links, body.links[].href_url.domain.root_domain, body.links[].href_url.query_params, sender.email.domain.root_domain, type.inbound. Sensors: profile.by_sender, strings.contains.
Indicators matched (2)
| Field | Match | Value |
|---|---|---|
body.links[].href_url.domain.root_domain | equals | avast.com |
strings.contains | substring | DisplayRedirectCustomPage |