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MITRE ATT&CK® Malware

S1022: IceApple

IceApple is a modular Internet Information Services (IIS) post-exploitation framework, that has been used since at least 2021 against the technology, academic, and government sectors.[1]

EnterpriseS1022MalwareObject v1.1Modified
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Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S1022: IceApple describes [IceApple](https://attack.mitre.org/software/S1022) is a modular Internet Information Services (IIS) post-exploitation framework, that has been used since at least 2021 against the technology, academic, and government sectors.(Citation: CrowdStrike IceApple May 2022)

Executive priority

S1022: IceApple 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 S1022: IceApple 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 S1022: IceApple 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

IceApple

IceApple is a modular Internet Information Services (IIS) post-exploitation framework, that has been used since at least 2021 against the technology, academic, and government sectors.[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.

19 rows
DomainIDNameRelationship / procedure
EnterpriseT1016System Network Configuration Discovery

The IceApple ifconfig module can iterate over all network interfaces on the host and retrieve the name, description, MAC address, DNS suffix, DNS servers, gateways, IPv4 addresses, and subnet masks.[1]

EnterpriseT1027.010Command ObfuscationSub-technique

IceApple can use Base64 and "junk" JavaScript code to obfuscate information.[1]

EnterpriseT1003.004LSA SecretsSub-technique

IceApple's Credential Dumper module can dump LSA secrets from registry keys, including: `HKLM\SECURITY\Policy\PolEKList\default`, `HKLM\SECURITY\Policy\Secrets\*\CurrVal`, and `HKLM\SECURITY\Policy\Secrets\*\OldVal`.[1]

EnterpriseT1036.005Match Legitimate Resource Name or LocationSub-technique

IceApple .NET assemblies have used `App_Web_` in their file names to appear legitimate.[1]

EnterpriseT1070.004File DeletionSub-technique

IceApple can delete files and directories from targeted systems.[1]

EnterpriseT1552.002Credentials in RegistrySub-technique

IceApple can harvest credentials from local and remote host registries.[1]

EnterpriseT1041Exfiltration Over C2 Channel

IceApple's Multi File Exfiltrator module can exfiltrate multiple files from a compromised host as an HTTP response over C2.[1]

EnterpriseT1505.004IIS ComponentsSub-technique

IceApple is an IIS post-exploitation framework, consisting of 18 modules that provide several functionalities.[1]

EnterpriseT1005Data from Local System

IceApple can collect files, passwords, and other data from a compromised host.[1]

EnterpriseT1140Deobfuscate/Decode Files or Information

IceApple can use a Base64-encoded AES key to decrypt tasking.[1]

EnterpriseT1560.001Archive via UtilitySub-technique

IceApple can encrypt and compress files using Gzip prior to exfiltration.[1]

EnterpriseT1620Reflective Code Loading

IceApple can use reflective code loading to load .NET assemblies into `MSExchangeOWAAppPool` on targeted Exchange servers.[1]

EnterpriseT1056.003Web Portal CaptureSub-technique

The IceApple OWA credential logger can monitor for OWA authentication requests and log the credentials.[1]

EnterpriseT1071.001Web ProtocolsSub-technique

IceApple can use HTTP GET to request and pull information from C2.[1]

EnterpriseT1082System Information Discovery

The IceApple Server Variable Dumper module iterates over all server variables present for the current request and returns them to the adversary.[1]

EnterpriseT1083File and Directory Discovery

The IceApple Directory Lister module can list information about files and directories including creation time, last write time, name, and size.[1]

EnterpriseT1087.002Domain AccountSub-technique

The IceApple Active Directory Querier module can perform authenticated requests against an Active Directory server.[1]

EnterpriseT1573.001Symmetric CryptographySub-technique

The IceApple Result Retriever module can AES encrypt C2 responses.[1]

EnterpriseT1003.002Security Account ManagerSub-technique

IceApple's Credential Dumper module can dump encrypted password hashes from SAM registry keys, including `HKLM\SAM\SAM\Domains\Account\F` and `HKLM\SAM\SAM\Domains\Account\Users\*\V`.[1]

Relationship explorer

All related ATT&CK context

uses · TechniqueT1016: System Network Configuration DiscoveryEnterpriseuses · TechniqueT1027.010: Command ObfuscationEnterpriseuses · TechniqueT1003.004: LSA SecretsEnterpriseuses · TechniqueT1036.005: Match Legitimate Resource Name or LocationEnterpriseuses · TechniqueT1070.004: File DeletionEnterpriseuses · TechniqueT1552.002: Credentials in RegistryEnterpriseuses · TechniqueT1041: Exfiltration Over C2 ChannelEnterpriseuses · TechniqueT1505.004: IIS ComponentsEnterpriseuses · TechniqueT1005: Data from Local SystemEnterpriseuses · TechniqueT1140: Deobfuscate/Decode Files or InformationEnterpriseuses · TechniqueT1560.001: Archive via UtilityEnterpriseuses · TechniqueT1620: Reflective Code LoadingEnterpriseuses · TechniqueT1056.003: Web Portal CaptureEnterpriseuses · TechniqueT1071.001: Web ProtocolsEnterpriseuses · TechniqueT1082: System Information DiscoveryEnterpriseuses · TechniqueT1083: File and Directory DiscoveryEnterpriseuses · TechniqueT1087.002: Domain AccountEnterpriseuses · TechniqueT1573.001: Symmetric CryptographyEnterpriseuses · TechniqueT1003.002: Security Account ManagerEnterprise
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
b4b861a4a93e0f4a...
Imported snapshots across ATT&CK releases(2)
ReleaseBundle importedObject versionModifiedStatusRaw hash
19.21.1Current bundleb4b861a4a93e…
19.11.1Older bundleb4b861a4a93e…
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.

Open mirrored raw JSONOpen MITRE-hosted copy
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]
    CrowdStrike IceApple May 2022

    CrowdStrike. (2022, May). ICEAPPLE: A NOVEL INTERNET INFORMATION SERVICES (IIS) POST-EXPLOITATION FRAMEWORK. Retrieved June 27, 2022.

    Open source URL
  2. [2]
    mitre-attackS1022
    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.

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