S0295: RCSAndroid
RCSAndroid is Android malware. [1]
Analyst context for executives and security teams
RCSAndroid is an Android malware entry in ATT&CK with relationships showing mobile surveillance and data collection behaviors: runtime code download, access to stored app/local data, clipboard, SMS, location, audio, and video capture, plus out-of-band communications. For leaders, the practical issue is not just “malware on a phone”; it is the potential exposure of executive communications, credentials copied through mobile workflows, physical location patterns, and sensitive business data stored on or accessible from Android devices.
Executive priority
Treat this as a mobile risk validation case for high-value users and managed Android fleets. Priority questions: which Android devices can access sensitive business systems, whether mobile permissions and sideloading are governed, whether rooted or compromised devices are blocked from enterprise access, and whether SOC/IR teams can produce evidence of mobile app inventory, permissions, device posture, and suspicious mobile network behavior. The audio, video, SMS, clipboard, and location relationships make this relevant to privacy, compliance evidence, executive protection, and cyber-physical exposure where mobile devices are used in sensitive environments.
Technical view
ATT&CK provides no official detection text and no tactics for this malware object, so defenders should validate coverage against the related Android techniques rather than rely on a single malware signature. Focus on Android telemetry that can reveal dynamic code loading after installation, abnormal permission combinations, access to SMS/content providers, microphone/camera/location use, clipboard monitoring where observable, local or application data access, and communications over nonstandard or out-of-band paths. IR teams should be prepared to preserve mobile device posture, installed application details, permissions, network indicators, and evidence of rooting or elevated access where available.
Likely telemetry
- Android device inventory and OS/version posture from enterprise mobility or device management tooling
- Installed application inventory, package metadata, signing/source information, and sideloading status
- Application permission declarations and runtime permission grants for microphone, camera, location, SMS, storage, clipboard-related behavior, and background location
- Mobile threat defense or endpoint telemetry for dynamic code loading, downloaded executable content, and suspicious post-install behavior
- Network telemetry from mobile devices, including unusual destinations, data transfer patterns, and possible fallback or out-of-band communication indicators
Detection direction
- Map detections to the related techniques: T1407, T1409, T1414, T1429, T1430, T1512, T1533, T1636.004, and T1644, because the malware object itself has no official detection guidance.
- Validate behavioral detection beyond static app scanning; T1407 indicates code may be downloaded after installation, which can reduce confidence in pre-install or app-store-only review.
- Tune permission-risk analytics for combinations that are sensitive in business contexts, such as microphone plus camera plus background location plus SMS or broad storage access, while accounting for legitimate enterprise apps that require these permissions.
- Check blind spots around BYOD, unmanaged Android devices, personal messaging apps, external storage, and mobile telemetry that is not forwarded to the SOC.
- For out-of-band data behavior, confirm whether SMS, Bluetooth, NFC, push notification abuse, or cellular/Wi-Fi gaps are observable in the organization’s mobile monitoring model.
Mitigation priorities
- Prioritize managed Android enrollment, device compliance checks, and conditional access for users or devices that can reach sensitive business systems.
- Restrict sideloading and enforce approved application sources or allowlisting where operationally feasible.
- Govern high-risk permissions, especially microphone, camera, location, SMS, storage, and background location, with exception handling for legitimate business apps.
- Maintain Android OS and security patch currency and block rooted or policy-noncompliant devices from enterprise access where supported by the access model.
- Use mobile app vetting that includes behavioral or dynamic analysis, not only static package review, because the related behavior includes downloading new code at runtime.
Analyst notes and limits
The supplied ATT&CK object is sparse: the official description only states that RCSAndroid is Android malware, and detection is not provided. The strongest decision value comes from the supplied relationships, which indicate the behaviors defenders should validate across the Android fleet. The external reference title also points to spying functionality and rooting behavior, but this take avoids expanding beyond the supplied ATT&CK fields and relationship descriptions.
No active exploitation, victimology, attribution, indicators, command-and-control infrastructure, or guaranteed detection logic is provided in the supplied fields. Tactics are not specified. Any assessment of exposure requires local evidence: Android fleet scope, BYOD policy, device management coverage, mobile telemetry retention, app inventory, permission state, and access paths from mobile devices into enterprise systems.
RCSAndroid
RCSAndroid is Android malware. [1]
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.
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.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| Mobile | T1429 | Audio Capture | RCSAndroid can record audio using the device microphone.CitationTrendMicro-RCSAndroid |
| Mobile | T1636.004 | SMS Messages Sub-technique | RCSAndroid can collect SMS, MMS, and Gmail messages.CitationTrendMicro-RCSAndroid |
| Mobile | T1409 | Stored Application Data | RCSAndroid can collect contacts and messages from popular applications, including Facebook Messenger, WhatsApp, Skype, Viber, Line, WeChat, Hangouts, Telegram, and BlackBerry Messenger.CitationTrendMicro-RCSAndroid |
| Mobile | T1644 | Out of Band Data | RCSAndroid can use SMS for command and control.CitationTrendMicro-RCSAndroid |
| Mobile | T1407 | Download New Code at Runtime | RCSAndroid has the ability to dynamically download and execute new code at runtime.CitationTrendMicro-RCSAndroid |
| Mobile | T1414 | Clipboard Data | RCSAndroid can monitor clipboard content.CitationTrendMicro-RCSAndroid |
| Mobile | T1533 | Data from Local System | RCSAndroid can collect passwords for Wi-Fi networks and online accounts, including Skype, Facebook, Twitter, Google, WhatsApp, Mail, and LinkedIn.CitationTrendMicro-RCSAndroid |
| Mobile | T1512 | Video Capture | RCSAndroid can capture photos using the front and back cameras.CitationTrendMicro-RCSAndroid |
| Mobile | T1430 | Location Tracking | RCSAndroid can record location.CitationTrendMicro-RCSAndroid |
All related ATT&CK context
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 .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.2 | Current bundle | d9840abe7175… |
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.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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[1]
TrendMicro-RCSAndroid
Veo Zhang. (2015, July 21). Hacking Team RCSAndroid Spying Tool Listens to Calls; Roots Devices to Get In. Retrieved December 22, 2016.
Open source URL -
[2]
RCSAndroid
(Citation: TrendMicro-RCSAndroid)
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[3]
mitre-attack S0295Open source URL
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