Open Redirect: nowlifestyle.com

 1name: "Open Redirect: nowlifestyle.com"
 2description: |
 3    Message contains use of the nowlifestyle.com open redirect. This has been exploited in the wild.
 4type: "rule"
 5severity: "medium"
 6source: |
 7  type.inbound
 8  and any(body.links,
 9          .href_url.domain.root_domain == "nowlifestyle.com"
10          and strings.icontains(.href_url.path, "/redir.php")
11          and regex.icontains(.href_url.query_params,
12                              'url=(?:https?|(?:\/|%2f)(?:\/|%2f))'
13          )
14          and not regex.icontains(.href_url.query_params,
15                                  'url=[^\&]*nowlifestyle\.com'
16          )
17  )
18  and not sender.email.domain.root_domain == "nowlifestyle.com"
19  and (
20    not profile.by_sender().solicited
21    or (
22      profile.by_sender().any_messages_malicious_or_spam
23      and not profile.by_sender().any_false_positives
24    )
25  )
26  
27  // negate highly trusted sender domains unless they fail DMARC authentication
28  and (
29    (
30      sender.email.domain.root_domain in $high_trust_sender_root_domains
31      and not headers.auth_summary.dmarc.pass
32    )
33    or sender.email.domain.root_domain not in $high_trust_sender_root_domains
34  )  
35attack_types:
36  - "Credential Phishing"
37tactics_and_techniques:
38  - "Open redirect"
39detection_methods:
40  - "Sender analysis"
41  - "URL analysis"
42id: "a2bea3a3-5673-5c56-9042-36bf67ece793"