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MITRE ATT&CK® Malware

S0142: StreamEx

StreamEx is a malware family that has been used by Deep Panda since at least 2015. In 2016, it was distributed via legitimate compromised Korean websites. [1]

EnterpriseS0142MalwareObject v1.1Modified
Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S0142: StreamEx describes [StreamEx](https://attack.mitre.org/software/S0142) is a malware family that has been used by [Deep Panda](https://attack.mitre.org/groups/G0009) since at least 2015. In 2016, it was distributed via legitimate compromised Korean websites. (Citation: Cylance Shell Crew Feb 2017)

Executive priority

S0142: StreamEx 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 S0142: StreamEx 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 S0142: StreamEx 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

StreamEx

StreamEx is a malware family that has been used by Deep Panda since at least 2015. In 2016, it was distributed via legitimate compromised Korean websites. [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.

9 rows
DomainIDNameRelationship / procedure
EnterpriseT1057Process Discovery

StreamEx has the ability to enumerate processes.[1]

EnterpriseT1218.011Rundll32Sub-technique

StreamEx uses rundll32 to call an exported function.[1]

EnterpriseT1543.003Windows ServiceSub-technique

StreamEx establishes persistence by installing a new service pointing to its DLL and setting the service to auto-start.[1]

EnterpriseT1112Modify Registry

StreamEx has the ability to modify the Registry.[1]

EnterpriseT1082System Information Discovery

StreamEx has the ability to enumerate system information.[1]

EnterpriseT1083File and Directory Discovery

StreamEx has the ability to enumerate drive types.[1]

EnterpriseT1518.001Security Software DiscoverySub-technique

StreamEx has the ability to scan for security tools such as firewalls and antivirus tools.[1]

EnterpriseT1027Obfuscated Files or Information

StreamEx obfuscates some commands by using statically programmed fragments of strings when starting a DLL. It also uses a one-byte xor against 0x91 to encode configuration data.[1]

EnterpriseT1059.003Windows Command ShellSub-technique

StreamEx has the ability to remotely execute commands.[1]

Associated objects

Groups, software, and campaigns

GroupEnterprise

G0009: Deep Panda

Deep Panda is a suspected Chinese threat group known to target many industries, including government, defense, financial, and telecommunications. [1] The intrusion into healthcare company Anthem has been attributed to Deep Panda. [2] This group is also known as Shell Crew, WebMasters, KungFu Kittens, and PinkPanther. [3] Deep Panda also appears to be known as Black Vine based on the attribution of both group names to the Anthem intrusion. [4] Some analysts track Deep Panda and APT19 as the same group, but it is unclear from open source information if the groups are the same. [5]

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
1.1
Created
Modified
Raw hash
83ac028da25f2845...
Imported snapshots across ATT&CK releases(3)
ReleaseBundle importedObject versionModifiedStatusRaw hash
20.01.1Current bundle83ac028da25f…
19.21.1Older bundle83ac028da25f…
19.11.1Older bundle83ac028da25f…
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]
    Cylance Shell Crew Feb 2017

    Cylance SPEAR Team. (2017, February 9). Shell Crew Variants Continue to Fly Under Big AV’s Radar. Retrieved February 15, 2017.

    Open source URL
  2. [2]
    StreamEx

    (Citation: Cylance Shell Crew Feb 2017)

  3. [3]
    mitre-attackS0142
    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.