Detectionmediumtest

Suspicious DNS Query with B64 Encoded String

Detects suspicious DNS queries using base64 encoding

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Florian Roth (Nextron Systems)Created Thu May 10Updated Sun Oct 094153a907-2451-4e4f-a578-c52bb6881432network

Log Source

dns

Categorydns← raw: dns

Detection Logic

detection:
    selection:
        query|contains: '==.'
    condition: selection

False Positives

Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References

MITRE ATT&CK

Tactics

Sub-techniques

Rule Metadata

Rule ID

4153a907-2451-4e4f-a578-c52bb6881432

Status

test

Level

medium

Type

Detection

Created

Thu May 10

Modified

Sun Oct 09

Author

Path

rules/network/dns/net_dns_susp_b64_queries.yml

Raw Tags

attack.exfiltrationattack.t1048.003attack.command-and-controlattack.t1071.004