title: Suspicious Typical Malware Back Connect Ports
author: Florian Roth
date: 2017/03/19
description: Detects programs that connect to typical malware back connect ports based
    on statistical analysis from two different sandbox system databases
detection:
    SELECTION_1:
        EventID: 3
    SELECTION_10:
        DestinationPort: '13506'
    SELECTION_11:
        DestinationPort: '3360'
    SELECTION_12:
        DestinationPort: '200'
    SELECTION_13:
        DestinationPort: '198'
    SELECTION_14:
        DestinationPort: '49180'
    SELECTION_15:
        DestinationPort: '13507'
    SELECTION_16:
        DestinationPort: '6625'
    SELECTION_17:
        DestinationPort: '4444'
    SELECTION_18:
        DestinationPort: '4438'
    SELECTION_19:
        DestinationPort: '1904'
    SELECTION_2:
        Initiated: 'true'
    SELECTION_20:
        DestinationPort: '13505'
    SELECTION_21:
        DestinationPort: '13504'
    SELECTION_22:
        DestinationPort: '12102'
    SELECTION_23:
        DestinationPort: '9631'
    SELECTION_24:
        DestinationPort: '5445'
    SELECTION_25:
        DestinationPort: '2443'
    SELECTION_26:
        DestinationPort: '777'
    SELECTION_27:
        DestinationPort: '13394'
    SELECTION_28:
        DestinationPort: '13145'
    SELECTION_29:
        DestinationPort: '12103'
    SELECTION_3:
        DestinationPort: '4443'
    SELECTION_30:
        DestinationPort: '5552'
    SELECTION_31:
        DestinationPort: '3939'
    SELECTION_32:
        DestinationPort: '3675'
    SELECTION_33:
        DestinationPort: '666'
    SELECTION_34:
        DestinationPort: '473'
    SELECTION_35:
        DestinationPort: '5649'
    SELECTION_36:
        DestinationPort: '4455'
    SELECTION_37:
        DestinationPort: '4433'
    SELECTION_38:
        DestinationPort: '1817'
    SELECTION_39:
        DestinationPort: '100'
    SELECTION_4:
        DestinationPort: '2448'
    SELECTION_40:
        DestinationPort: '65520'
    SELECTION_41:
        DestinationPort: '1960'
    SELECTION_42:
        DestinationPort: '1515'
    SELECTION_43:
        DestinationPort: '743'
    SELECTION_44:
        DestinationPort: '700'
    SELECTION_45:
        DestinationPort: '14154'
    SELECTION_46:
        DestinationPort: '14103'
    SELECTION_47:
        DestinationPort: '14102'
    SELECTION_48:
        DestinationPort: '12322'
    SELECTION_49:
        DestinationPort: '10101'
    SELECTION_5:
        DestinationPort: '8143'
    SELECTION_50:
        DestinationPort: '7210'
    SELECTION_51:
        DestinationPort: '4040'
    SELECTION_52:
        DestinationPort: '9943'
    SELECTION_53:
        EventID: 3
    SELECTION_54:
        Image: '*\Program Files*'
    SELECTION_55:
        DestinationIp: 10.*
    SELECTION_56:
        DestinationIp: 192.168.*
    SELECTION_57:
        DestinationIp: 172.16.*
    SELECTION_58:
        DestinationIp: 172.17.*
    SELECTION_59:
        DestinationIp: 172.18.*
    SELECTION_6:
        DestinationPort: '1777'
    SELECTION_60:
        DestinationIp: 172.19.*
    SELECTION_61:
        DestinationIp: 172.20.*
    SELECTION_62:
        DestinationIp: 172.21.*
    SELECTION_63:
        DestinationIp: 172.22.*
    SELECTION_64:
        DestinationIp: 172.23.*
    SELECTION_65:
        DestinationIp: 172.24.*
    SELECTION_66:
        DestinationIp: 172.25.*
    SELECTION_67:
        DestinationIp: 172.26.*
    SELECTION_68:
        DestinationIp: 172.27.*
    SELECTION_69:
        DestinationIp: 172.28.*
    SELECTION_7:
        DestinationPort: '1443'
    SELECTION_70:
        DestinationIp: 172.29.*
    SELECTION_71:
        DestinationIp: 172.30.*
    SELECTION_72:
        DestinationIp: 172.31.*
    SELECTION_73:
        DestinationIp: 127.*
    SELECTION_74:
        DestinationIsIpv6: 'false'
    SELECTION_8:
        DestinationPort: '243'
    SELECTION_9:
        DestinationPort: '65535'
    condition: (SELECTION_1 and (SELECTION_2 and (SELECTION_3 or SELECTION_4 or SELECTION_5
        or SELECTION_6 or SELECTION_7 or SELECTION_8 or SELECTION_9 or SELECTION_10
        or SELECTION_11 or SELECTION_12 or SELECTION_13 or SELECTION_14 or SELECTION_15
        or SELECTION_16 or SELECTION_17 or SELECTION_18 or SELECTION_19 or SELECTION_20
        or SELECTION_21 or SELECTION_22 or SELECTION_23 or SELECTION_24 or SELECTION_25
        or SELECTION_26 or SELECTION_27 or SELECTION_28 or SELECTION_29 or SELECTION_30
        or SELECTION_31 or SELECTION_32 or SELECTION_33 or SELECTION_34 or SELECTION_35
        or SELECTION_36 or SELECTION_37 or SELECTION_38 or SELECTION_39 or SELECTION_40
        or SELECTION_41 or SELECTION_42 or SELECTION_43 or SELECTION_44 or SELECTION_45
        or SELECTION_46 or SELECTION_47 or SELECTION_48 or SELECTION_49 or SELECTION_50
        or SELECTION_51 or SELECTION_52)) and  not ((SELECTION_53 and (SELECTION_54
        or ((SELECTION_55 or SELECTION_56 or SELECTION_57 or SELECTION_58 or SELECTION_59
        or SELECTION_60 or SELECTION_61 or SELECTION_62 or SELECTION_63 or SELECTION_64
        or SELECTION_65 or SELECTION_66 or SELECTION_67 or SELECTION_68 or SELECTION_69
        or SELECTION_70 or SELECTION_71 or SELECTION_72 or SELECTION_73) and SELECTION_74)))))
falsepositives:
- unknown
id: 4b89abaa-99fe-4232-afdd-8f9aa4d20382
level: medium
logsource:
    category: network_connection
    definition: 'Use the following config to generate the necessary Event ID 10 Process
        Access events: <ProcessAccess onmatch="include"><CallTrace condition="contains">VBE7.DLL</CallTrace></ProcessAccess><ProcessAccess
        onmatch="exclude"><CallTrace condition="excludes">UNKNOWN</CallTrace></ProcessAccess>'
    product: windows
modified: 2020/08/24
references:
- https://docs.google.com/spreadsheets/d/17pSTDNpa0sf6pHeRhusvWG6rThciE8CsXTSlDUAZDyo
status: experimental
tags:
- attack.command_and_control
- attack.t1571
- attack.t1043
yml_filename: sysmon_malware_backconnect_ports.yml
yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/network_connection