Detectionhightest
Potentially Suspicious Malware Callback Communication
Detects programs that connect to known malware callback ports based on statistical analysis from two different sandbox system databases
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Florian Roth (Nextron Systems)Created Sun Mar 19Updated Tue Mar 124b89abaa-99fe-4232-afdd-8f9aa4d20382windows
Log Source
WindowsNetwork Connection
ProductWindows← raw: windows
CategoryNetwork Connection← raw: network_connection
Events for outbound and inbound network connections including DNS resolution.
Detection Logic
Detection Logic3 selectors
detection:
selection:
Initiated: 'true'
DestinationPort:
- 100
- 198
- 200
- 243
- 473
- 666
- 700
- 743
- 777
- 1443
- 1515
- 1777
- 1817
- 1904
- 1960
- 2443
- 2448
- 3360
- 3675
- 3939
- 4040
- 4433
- 4438
- 4443
- 4444
- 4455
- 5445
- 5552
- 5649
- 6625
- 7210
- 7777
- 8143
- 8843
- 9631
- 9943
- 10101
- 12102
- 12103
- 12322
- 13145
- 13394
- 13504
- 13505
- 13506
- 13507
- 14102
- 14103
- 14154
- 49180
- 65520
- 65535
filter_main_local_ranges:
DestinationIp|cidr:
- '127.0.0.0/8'
- '10.0.0.0/8'
- '172.16.0.0/12'
- '192.168.0.0/16'
- '169.254.0.0/16'
- '::1/128' # IPv6 loopback
- 'fe80::/10' # IPv6 link-local addresses
- 'fc00::/7' # IPv6 private addresses
filter_optional_sys_directories:
Image|startswith:
- 'C:\Program Files\'
- 'C:\Program Files (x86)\'
condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Rule Metadata
Rule ID
4b89abaa-99fe-4232-afdd-8f9aa4d20382
Status
test
Level
high
Type
Detection
Created
Sun Mar 19
Modified
Tue Mar 12
Path
rules/windows/network_connection/net_connection_win_susp_malware_callback_port.yml
Raw Tags
attack.persistenceattack.command-and-controlattack.t1571