Detection rules › Sublime MQL
Open redirect: retailrocket.net
Message contains use of the retailrocket.net open redirect. This has been exploited in the wild.
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) |
| headers.auth_summary |
| sender.email |
| type |
Rule body MQL
type.inbound
and length(filter(body.links,
.href_url.domain.root_domain == "retailrocket.net"
)
) < 10
and any(body.links,
.href_url.domain.domain == "clickproxy.retailrocket.net"
and strings.icontains(.href_url.query_params, 'url=')
and not regex.icontains(.href_url.query_params,
'url=(?:https?(?:%3a|:))?(?:%2f|\/){2}[^&]*retailrocket\.net(?:\&|\/|$)'
)
)
and not sender.email.domain.root_domain == "retailrocket.net"
// 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 $high_trust_sender_root_domains
)
Detection logic
Scope: inbound message.
Message contains use of the retailrocket.net open redirect. This has been exploited in the wild.
- inbound message
- length(filter(body.links, .href_url.domain.root_domain == 'retailrocket.net')) < 10
any of
body.linkswhere all hold:- .href_url.domain.domain is 'clickproxy.retailrocket.net'
- .href_url.query_params contains 'url='
not:
- .href_url.query_params matches 'url=(?:https?(?:%3a|:))?(?:%2f|\\/){2}[^&]*retailrocket\\.net(?:\\&|\\/|$)'
not:
- sender.email.domain.root_domain is 'retailrocket.net'
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: body.links, body.links[].href_url.domain.domain, body.links[].href_url.domain.root_domain, body.links[].href_url.query_params, headers.auth_summary.dmarc.pass, sender.email.domain.root_domain, type.inbound. Sensors: regex.icontains, strings.icontains. Reference lists: $high_trust_sender_root_domains.
Indicators matched (5)
| Field | Match | Value |
|---|---|---|
body.links[].href_url.domain.root_domain | equals | retailrocket.net |
body.links[].href_url.domain.domain | equals | clickproxy.retailrocket.net |
strings.icontains | substring | url= |
regex.icontains | regex | url=(?:https?(?:%3a|:))?(?:%2f|\/){2}[^&]*retailrocket\.net(?:\&|\/|$) |
sender.email.domain.root_domain | equals | retailrocket.net |