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MITRE ATT&CK® Malware

S1044: FunnyDream

FunnyDream is a backdoor with multiple components that was used during the FunnyDream campaign since at least 2019, primarily for execution and exfiltration.[1]

EnterpriseS1044MalwareObject v1.1Modified
Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S1044: FunnyDream describes [FunnyDream](https://attack.mitre.org/software/S1044) is a backdoor with multiple components that was used during the [FunnyDream](https://attack.mitre.org/campaigns/C0007) campaign since at least 2019, primarily for execution and exfiltration.(Citation: Bitdefender FunnyDream Campaign November 2020)

Executive priority

S1044: FunnyDream 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 S1044: FunnyDream 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 S1044: FunnyDream 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

FunnyDream

FunnyDream is a backdoor with multiple components that was used during the FunnyDream campaign since at least 2019, primarily for execution and exfiltration.[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.

37 rows
DomainIDNameRelationship / procedure
EnterpriseT1543.003Windows ServiceSub-technique

FunnyDream has established persistence by running `sc.exe` and by setting the `WSearch` service to run automatically.[1]

EnterpriseT1547.001Registry Run Keys / Startup FolderSub-technique

FunnyDream can use a Registry Run Key and the Startup folder to establish persistence.[1]

EnterpriseT1047Windows Management Instrumentation

FunnyDream can use WMI to open a Windows command shell on a remote machine.[1]

EnterpriseT1120Peripheral Device Discovery

The FunnyDream FilepakMonitor component can detect removable drive insertion.[1]

EnterpriseT1074.001Local Data StagingSub-technique

FunnyDream can stage collected information including screen captures and logged keystrokes locally.[1]

EnterpriseT1559.001Component Object ModelSub-technique

FunnyDream can use com objects identified with `CLSID_ShellLink`(`IShellLink` and `IPersistFile`) and `WScript.Shell`(`RegWrite` method) to enable persistence mechanisms.[1]

EnterpriseT1218.011Rundll32Sub-technique

FunnyDream can use `rundll32` for execution of its components.[1]

EnterpriseT1055.001Dynamic-link Library InjectionSub-technique

The FunnyDream FilepakMonitor component can inject into the Bka.exe process using the `VirtualAllocEx`, `WriteProcessMemory` and `CreateRemoteThread` APIs to load the DLL component.[1]

EnterpriseT1572Protocol Tunneling

FunnyDream can connect to HTTP proxies via TCP to create a tunnel to C2.[1]

EnterpriseT1057Process Discovery

FunnyDream has the ability to discover processes, including `Bka.exe` and `BkavUtil.exe`.[1]

EnterpriseT1036.004Masquerade Task or ServiceSub-technique

FunnyDream has used a service named `WSearch` for execution.[1]

EnterpriseT1041Exfiltration Over C2 Channel

FunnyDream can execute commands, including gathering user information, and send the results to C2.[1]

EnterpriseT1018Remote System Discovery

FunnyDream can collect information about hosts on the victim network.CitationKaspersky APT Trends Q1 2020

EnterpriseT1056.001KeyloggingSub-technique

The FunnyDream Keyrecord component can capture keystrokes.[1]

EnterpriseT1016System Network Configuration Discovery

FunnyDream can parse the `ProxyServer` string in the Registry to discover http proxies.[1]

EnterpriseT1033System Owner/User Discovery

FunnyDream has the ability to gather user information from the targeted system using `whoami/upn&whoami/fqdn&whoami/logonid&whoami/all`.[1]

EnterpriseT1124System Time Discovery

FunnyDream can check system time to help determine when changes were made to specified files.[1]

EnterpriseT1012Query Registry

FunnyDream can check `Software\Microsoft\Windows\CurrentVersion\Internet Settings` to extract the `ProxyServer` string.[1]

EnterpriseT1119Automated Collection

FunnyDream can monitor files for changes and automatically collect them.[1]

EnterpriseT1113Screen Capture

The FunnyDream ScreenCap component can take screenshots on a compromised host.[1]

EnterpriseT1090Proxy

FunnyDream can identify and use configured proxies in a compromised network for C2 communication.[1]

EnterpriseT1560.002Archive via LibrarySub-technique

FunnyDream has compressed collected files with zLib.[1]

EnterpriseT1105Ingress Tool Transfer

FunnyDream can download additional files onto a compromised host.[1]

EnterpriseT1070Indicator Removal

FunnyDream has the ability to clean traces of malware deployment.[1]

EnterpriseT1106Native API

FunnyDream can use Native API for defense evasion, discovery, and collection.[1]

EnterpriseT1005Data from Local System

FunnyDream can upload files from victims' machines.[1]CitationKaspersky APT Trends Q1 2020

EnterpriseT1001Data Obfuscation

FunnyDream can send compressed and obfuscated packets to C2.[1]

EnterpriseT1560.003Archive via Custom MethodSub-technique

FunnyDream has compressed collected files with zLib and encrypted them using an XOR operation with the string key from the command line or `qwerasdf` if the command line argument doesn’t contain the key. File names are obfuscated using XOR with the same key as the compressed file content.[1]

EnterpriseT1025Data from Removable Media

The FunnyDream FilePakMonitor component has the ability to collect files from removable devices.[1]

EnterpriseT1518.001Security Software DiscoverySub-technique

FunnyDream can identify the processes for Bkav antivirus.[1]

EnterpriseT1059.003Windows Command ShellSub-technique

FunnyDream can use `cmd.exe` for execution on remote hosts.[1]

EnterpriseT1027.013Encrypted/Encoded FileSub-technique

FunnyDream can Base64 encode its C2 address stored in a template binary with the `xyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw_-` or `xyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw_=` character sets.[1]

EnterpriseT1680Local Storage Discovery

FunnyDream can enumerate all logical drives on a targeted machine.[1]

EnterpriseT1070.004File DeletionSub-technique

FunnyDream can delete files including its dropper component.[1]

EnterpriseT1083File and Directory Discovery

FunnyDream can identify files with .doc, .docx, .ppt, .pptx, .xls, .xlsx, and .pdf extensions and specific timestamps for collection.[1]

EnterpriseT1095Non-Application Layer Protocol

FunnyDream can communicate with C2 over TCP and UDP.[1]

EnterpriseT1010Application Window Discovery

FunnyDream has the ability to discover application windows via execution of `EnumWindows`.[1]

Associated objects

Groups, software, and campaigns

CampaignEnterprise

C0007: FunnyDream

FunnyDream was a suspected Chinese cyber espionage campaign that targeted government and foreign organizations in Malaysia, the Philippines, Taiwan, Vietnam, and other parts of Southeast Asia. Security researchers linked the FunnyDream campaign to possible Chinese-speaking threat actors through the use of the Chinoxy backdoor and noted infrastructure overlap with the TAG-16 threat group.[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
19.2
Object version
1.1
Created
Modified
Raw hash
c4847b4261b47057...
Imported snapshots across ATT&CK releases(2)
ReleaseBundle importedObject versionModifiedStatusRaw hash
19.21.1Current bundlec4847b4261b4…
19.11.1Older bundlec4847b4261b4…
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]
    Bitdefender FunnyDream Campaign November 2020

    Vrabie, V. (2020, November). Dissecting a Chinese APT Targeting South Eastern Asian Government Institutions. Retrieved September 19, 2022.

    Open source URL
  2. [2]
    mitre-attackS1044
    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.