MITRE ATT&CK Technique
Reconnaissance T1595
Description

Adversaries may execute active reconnaissance scans to gather information that can be used during targeting. Active scans are those where the adversary probes victim infrastructure via network traffic, as opposed to other forms of reconnaissance that do not involve direct interaction. Adversaries may perform different forms of active scanning depending on what information they seek to gather. These scans can also be performed in various ways, including using native features of network protocols such as ICMP.(Citation: Botnet Scan)(Citation: OWASP Fingerprinting) Information from these scans may reveal opportunities for other forms of reconnaissance (ex: [Search Open Websites/Domains](https://attack.mitre.org/techniques/T1593) or [Search Open Technical Databases](https://attack.mitre.org/techniques/T1596)), establishing operational resources (ex: [Develop Capabilities](https://attack.mitre.org/techniques/T1587) or [Obtain Capabilities](https://attack.mitre.org/techniques/T1588)), and/or initial access (ex: [External Remote Services](https://attack.mitre.org/techniques/T1133) or [Exploit Public-Facing Application](https://attack.mitre.org/techniques/T1190)).

Supported Platforms
PRE
Created

April 29, 2026

Last Updated

April 29, 2026

STIX Data
{'created': '2020-10-02T16:53:16.526Z',
 'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'description': 'Adversaries may execute active reconnaissance scans to gather '
                'information that can be used during targeting. Active scans '
                'are those where the adversary probes victim infrastructure '
                'via network traffic, as opposed to other forms of '
                'reconnaissance that do not involve direct interaction.\n'
                '\n'
                'Adversaries may perform different forms of active scanning '
                'depending on what information they seek to gather. These '
                'scans can also be performed in various ways, including using '
                'native features of network protocols such as ICMP.(Citation: '
                'Botnet Scan)(Citation: OWASP Fingerprinting) Information from '
                'these scans may reveal opportunities for other forms of '
                'reconnaissance (ex: [Search Open '
                'Websites/Domains](https://attack.mitre.org/techniques/T1593) '
                'or [Search Open Technical '
                'Databases](https://attack.mitre.org/techniques/T1596)), '
                'establishing operational resources (ex: [Develop '
                'Capabilities](https://attack.mitre.org/techniques/T1587) or '
                '[Obtain '
                'Capabilities](https://attack.mitre.org/techniques/T1588)), '
                'and/or initial access (ex: [External Remote '
                'Services](https://attack.mitre.org/techniques/T1133) or '
                '[Exploit Public-Facing '
                'Application](https://attack.mitre.org/techniques/T1190)).',
 'external_references': [{'external_id': 'T1595',
                          'source_name': 'mitre-attack',
                          'url': 'https://attack.mitre.org/techniques/T1595'},
                         {'description': 'Dainotti, A. et al. (2012). Analysis '
                                         'of a “/0” Stealth Scan from a '
                                         'Botnet. Retrieved October 20, 2020.',
                          'source_name': 'Botnet Scan',
                          'url': 'https://www.caida.org/publications/papers/2012/analysis_slash_zero/analysis_slash_zero.pdf'},
                         {'description': 'OWASP Wiki. (2018, February 16). '
                                         'OAT-004 Fingerprinting. Retrieved '
                                         'October 20, 2020.',
                          'source_name': 'OWASP Fingerprinting',
                          'url': 'https://wiki.owasp.org/index.php/OAT-004_Fingerprinting'}],
 'id': 'attack-pattern--67073dde-d720-45ae-83da-b12d5e73ca3b',
 'kill_chain_phases': [{'kill_chain_name': 'mitre-attack',
                        'phase_name': 'reconnaissance'}],
 'modified': '2025-10-24T17:48:53.018Z',
 'name': 'Active Scanning',
 'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
 'revoked': False,
 'spec_version': '2.1',
 'type': 'attack-pattern',
 'x_mitre_attack_spec_version': '3.2.0',
 'x_mitre_deprecated': False,
 'x_mitre_detection': '',
 'x_mitre_domains': ['enterprise-attack'],
 'x_mitre_is_subtechnique': False,
 'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'x_mitre_platforms': ['PRE'],
 'x_mitre_version': '1.0'}
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