LiveActive security incident?Get immediate response
MITRE ATT&CK® Malware

S0696: Flagpro

Flagpro is a Windows-based, first-stage downloader that has been used by BlackTech since at least October 2020. It has primarily been used against defense, media, and communications companies in Japan.[1]

EnterpriseS0696MalwareObject v1.0Modified
Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S0696: Flagpro describes [Flagpro](https://attack.mitre.org/software/S0696) is a Windows-based, first-stage downloader that has been used by [BlackTech](https://attack.mitre.org/groups/G0098) since at least October 2020. It has primarily been used against defense, media, and communications companies in Japan.(Citation: NTT Security Flagpro new December 2021)

Executive priority

S0696: Flagpro is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.

Technical view

Security teams should validate S0696: Flagpro by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.

Likely telemetry

  • Official ATT&CK relationships and object metadata
  • Network, endpoint, and security-tool telemetry

Detection direction

  • Validate whether S0696: Flagpro appears in your detection coverage and tabletop scenarios.
  • Use the object to align executive risk language with SOC, incident response, and detection engineering work.
  • Do not treat ATT&CK relationship context as attribution without corroborating evidence.

Mitigation priorities

  • Map the object to existing controls and identify missing telemetry or response ownership.
  • Prioritize mitigations that reduce exposure on the listed platforms and tactics.
  • Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits

Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.

This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Official MITRE ATT&CK definition

Flagpro

Flagpro is a Windows-based, first-stage downloader that has been used by BlackTech since at least October 2020. It has primarily been used against defense, media, and communications companies in Japan.[1]

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

How security teams should use this page

Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.

ATT&CK relationship table

Techniques used

This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.

24 rows
DomainIDNameRelationship / procedure
EnterpriseT1132.001Standard EncodingSub-technique

Flagpro has encoded bidirectional data communications between a target system and C2 server using Base64.[1]

EnterpriseT1010Application Window Discovery

Flagpro can check the name of the window displayed on the system.[1]

EnterpriseT1029Scheduled Transfer

Flagpro has the ability to wait for a specified time interval between communicating with and executing commands from C2.[1]

EnterpriseT1614.001System Language DiscoverySub-technique

Flagpro can check whether the target system is using Japanese, Taiwanese, or English through detection of specific Windows Security and Internet Explorer dialog.[1]

EnterpriseT1059.005Visual BasicSub-technique

Flagpro can execute malicious VBA macros embedded in .xlsm files.[1]

EnterpriseT1059.003Windows Command ShellSub-technique

Flagpro can use `cmd.exe` to execute commands received from C2.[1]

EnterpriseT1027Obfuscated Files or Information

Flagpro has been delivered within ZIP or RAR password-protected archived files.[1]

EnterpriseT1005Data from Local System

Flagpro can collect data from a compromised host, including Windows authentication information.[1]

EnterpriseT1036Masquerading

Flagpro can download malicious files with a .tmp extension and append them with .exe prior to execution.[1]

EnterpriseT1204.002Malicious FileSub-technique

Flagpro has relied on users clicking a malicious attachment delivered through spearphishing.[1]

EnterpriseT1105Ingress Tool Transfer

Flagpro can download additional malware from the C2 server.[1]

EnterpriseT1547.001Registry Run Keys / Startup FolderSub-technique

Flagpro has dropped an executable file to the startup directory.[1]

EnterpriseT1071.001Web ProtocolsSub-technique

Flagpro can communicate with its C2 using HTTP.[1]

EnterpriseT1018Remote System Discovery

Flagpro has been used to execute net view on a targeted system.[1]

EnterpriseT1069.001Local GroupsSub-technique

Flagpro has been used to execute the net localgroup administrators command on a targeted system.[1]

EnterpriseT1041Exfiltration Over C2 Channel

Flagpro has exfiltrated data to the C2 server.[1]

EnterpriseT1033System Owner/User Discovery

Flagpro has been used to run the whoami command on the system.[1]

EnterpriseT1135Network Share Discovery

Flagpro has been used to execute `net view` to discover mapped network shares.[1]

EnterpriseT1016System Network Configuration Discovery

Flagpro has been used to execute the ipconfig /all command on a victim system.[1]

EnterpriseT1106Native API

Flagpro can use Native API to enable obfuscation including `GetLastError` and `GetTickCount`.[1]

EnterpriseT1566.001Spearphishing AttachmentSub-technique

Flagpro has been distributed via spearphishing as an email attachment.[1]

EnterpriseT1070Indicator Removal

Flagpro can close specific Windows Security and Internet Explorer dialog boxes to mask external connections.[1]

EnterpriseT1049System Network Connections Discovery

Flagpro has been used to execute netstat -ano on a compromised host.[1]

EnterpriseT1057Process Discovery

Flagpro has been used to run the tasklist command on a compromised system.[1]

Associated objects

Groups, software, and campaigns

GroupEnterprise

G0098: BlackTech

BlackTech is a suspected Chinese cyber espionage group that has primarily targeted organizations in East Asia--particularly Taiwan, Japan, and Hong Kong--and the US since at least 2013. BlackTech has used a combination of custom malware, dual-use tools, and living off the land tactics to compromise media, construction, engineering, electronics, and financial company networks.[1][2][3]

Relationship explorer

All related ATT&CK context

Change history

Object version and sync metadata

The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates.

ATT&CK release
20.0
Object version
1.0
Created
Modified
Raw hash
679422ac9ec1c5e3...
Imported snapshots across ATT&CK releases(3)
ReleaseBundle importedObject versionModifiedStatusRaw hash
20.01.0Current bundle679422ac9ec1…
19.21.0Older bundle679422ac9ec1…
19.11.0Older bundle679422ac9ec1…
Raw source

Mirrored ATT&CK source object

The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.

Source references

External references and citations

MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.

  1. [1]
    NTT Security Flagpro new December 2021

    Hada, H. (2021, December 28). Flagpro The new malware used by BlackTech. Retrieved March 25, 2022.

    Open source URL
  2. [2]
    mitre-attackS0696
    Open source URL
Source and licensing

Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.