Rules: Web Request to Punycode Domain
This rule detects web requests to domains that include punycode characters, which is a common phishing technique used to mimic the appearance of a legitimate domain.
| Detail | Value |
|---|---|
| Type | Templated Match |
| Category | Unknown/Other |
| Apply Risk to Entities | srcDevice_ip |
| Signal Name | Web Request to Punycode Domain |
| Summary Expression | Source IP {{srcDevice_ip}} was observed visiting a domain containing punycode characters. |
| Score/Severity | Static: 5 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0011, _mitreAttackTechnique:T1071, _mitreAttackTechnique:T1071.001 |
- Bro - Bro
- CheckPoint - URL Filtering
- Cisco Systems - Meraki
- Forcepoint - Web Security
- Fortinet - Fortigate
- Palo Alto Networks - Next Generation Firewall
- Symantec - Proxy Secure Gateway
- Zscaler - Firewall
- Zscaler - Nanolog Streaming Service
| Origin | Field |
|---|---|
| Normalized Schema | dstDevice_ip_isInternal |
| Normalized Schema | http_method |
| Normalized Schema | http_url_fqdn |
| Normalized Schema | listMatches |
| Normalized Schema | srcDevice_ip |
| Normalized Schema | srcDevice_ip_isInternal |