Detection rules › Sublime MQL
Open redirect: Indeed
Detects emails containing links using Indeed '/r?target=xxxxxx' open redirect where the email has not come from indeed.com
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
Rule body MQL
type.inbound
and (
(
sender.email.domain.root_domain != "indeed.com"
and any(body.links, "indeed_open_redirect" in .href_url.rewrite.encoders)
)
or any(attachments,
.file_type == "pdf"
and any(file.explode(.),
any(.scan.url.urls,
"indeed_open_redirect" in .rewrite.encoders
)
)
)
)
// negate highly trusted sender domains unless they fail DMARC authentication
and (
(
sender.email.domain.root_domain in $high_trust_sender_root_domains
and not headers.auth_summary.dmarc.pass
)
or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)
Detection logic
Scope: inbound message.
Detects emails containing links using Indeed '/r?target=xxxxxx' open redirect where the email has not come from indeed.com
- inbound message
any of:
all of:
- sender.email.domain.root_domain is not 'indeed.com'
any of
body.linkswhere:- .href_url.rewrite.encoders contains 'indeed_open_redirect'
any of
attachmentswhere all hold:- .file_type is 'pdf'
any of
file.explode(.)where:any of
.scan.url.urlswhere:- .rewrite.encoders contains 'indeed_open_redirect'
any of:
all of:
- sender.email.domain.root_domain in $high_trust_sender_root_domains
not:
- headers.auth_summary.dmarc.pass
- sender.email.domain.root_domain not in $high_trust_sender_root_domains
Inspects: attachments[].file_type, body.links, body.links[].href_url.rewrite.encoders, headers.auth_summary.dmarc.pass, sender.email.domain.root_domain, type.inbound. Sensors: file.explode. Reference lists: $high_trust_sender_root_domains.
Indicators matched (3)
| Field | Match | Value |
|---|---|---|
body.links[].href_url.rewrite.encoders | contains | indeed_open_redirect |
attachments[].file_type | equals | pdf |
file.explode(attachments[])[].scan.url.urls[].rewrite.encoders | contains | indeed_open_redirect |