Browse Rules

Search and filter across all detection sources

518 rules

signature-base unknown yara

dnscat2_Hacktool [yara]

Detects dnscat2 - from files dnscat, dnscat2.exe

sentinel high kql

GCP Audit Logs - DNSSEC Disabled on Managed DNS Zone

'Detects when DNSSEC (DNS Security Extensions) is disabled on a Google Cloud DNS managed zone. DNSSEC provides cryptographic authentication of DNS data, preventing DNS spoofing and cache poisoning attacks. Adversaries may disable DNSSEC to enable DNS-based command and control, phishing campaigns, or to redirect traffic to malicious infrastructure without cryptographic validation. This rule monitors DNS zone patch operations where DNSSEC state changes from ON to OFF.'

wazuh informational xml

MS-DHCP: DNS update request to the named DNS server.

MS-DHCP: DNS update request to the named DNS server.

wazuh informational xml

Suricata: DNS.

Suricata: DNS.

sagan medium other

[UMBRELLA-DNS] Suspicious DNS Query for deepseek[.]com

[UMBRELLA-DNS] Suspicious DNS Query for deepseek[.]com

wazuh informational xml

Bad DNS mapping.

Bad DNS mapping.

wazuh low xml

Zeek: DNS Query

Zeek: DNS Query

hayabusa high sigma

Powershell DNSExfiltration

DNSExfiltrator allows for transferring (exfiltrate) a file over a DNS request covert channel

sigma high sigma

Powershell DNSExfiltration

DNSExfiltrator allows for transferring (exfiltrate) a file over a DNS request covert channel

yara unknown yara

network_dns [capabilities]

Communications use DNS

hayabusa medium sigma

Potential Discovery Activity Via Dnscmd.EXE

Detects an attempt to leverage dnscmd.exe to enumerate the DNS zones of a domain. DNS zones used to host the DNS records for a particular domain.

sigma medium sigma

Potential Discovery Activity Via Dnscmd.EXE

Detects an attempt to leverage dnscmd.exe to enumerate the DNS zones of a domain. DNS zones used to host the DNS records for a particular domain.

hayabusa medium sigma

Potential Discovery Activity Via Dnscmd.EXE

Detects an attempt to leverage dnscmd.exe to enumerate the DNS zones of a domain. DNS zones used to host the DNS records for a particular domain.

sagan medium other

[EXTRAHOP] DNS Errors

[EXTRAHOP] DNS Errors

sagan medium other

[EXTRAHOP] DNS Issues

[EXTRAHOP] DNS Issues

sagan medium other

[EXTRAHOP] DNS Rebinding

[EXTRAHOP] DNS Rebinding

sagan medium other

[EXTRAHOP] DNS Timeouts

[EXTRAHOP] DNS Timeouts

sagan medium other

[EXTRAHOP] DNS Tunnel

[EXTRAHOP] DNS Tunnel

wazuh informational xml

Unbound: DNS A request.

Unbound: DNS A request.

wazuh informational xml

Unbound: DNS AAAA request.

Unbound: DNS AAAA request.

wazuh informational xml

GCP dns query event

GCP dns query event

sagan high other

[WINDOWS-POWERSHELL] DNSCAT VPN over DNS start up detected *CRITICAL AND CALL*

[WINDOWS-POWERSHELL] DNSCAT VPN over DNS start up detected *CRITICAL AND CALL*

sagan high other

[WINDOWS-POWERSHELL] DNSCAT VPN over DNS start up detected *CRITICAL AND CALL*

[WINDOWS-POWERSHELL] DNSCAT VPN over DNS start up detected *CRITICAL AND CALL*

hayabusa medium sigma

DNS Query To MEGA Hosting Website - DNS Client

Detects DNS queries for subdomains related to MEGA sharing website

hayabusa medium sigma

DNS Query To Put.io - DNS Client

Detects DNS queries for subdomains related to "Put.io" sharing website.