# T1437 Application Layer Protocol

> As of 2026-10-05, T1437 (Application Layer Protocol) appears in 34 tracked threats, first reported 2026-03-07 and most recently 2026-09-20, with linked actors including MoYu Group, NSO Group, APT37; it most often appears alongside T1660 (Phishing).

- **Tracked threats:** 34 (3 critical, 29 high, 1 medium, 1 low)
- **First seen:** 2026-03-07
- **Last seen:** 2026-09-20
- **Threat actors:** 6
- **Detection rules:** 53 (counts only; Blue tier and above)

## Key facts

- **ID:** T1437
- **Framework:** MITRE ATT&CK
- **Tactics:** Command and Control (Mobile)
- **Matrix:** Mobile
- **Data as of:** 2026-10-05
- **MITRE:** https://attack.mitre.org/techniques/T1437/

## Activity timeline

T1437 first appeared in tracked threats on 2026-03-07 and was most recently reported on 2026-09-20. The busiest month was 2026-07 with 11 reports, and 34 of the 34 threats were reported in the twelve months to 2026-09.

## How adversaries use it

T1437 Application Layer Protocol is catalogued by MITRE ATT&CK under the Command and Control (Mobile) tactic in the Mobile matrix. Threadlinqs maps 34 of 2623 tracked threats (1.3%) to it; by severity that is 3 critical, 29 high, 1 medium, 1 low.

Threats that use T1437 most often also use [T1660 Phishing](https://intel.threadlinqs.com/technique/T1660) (24 threats), [T1406 Obfuscated Files or Information](https://intel.threadlinqs.com/technique/T1406) (23 threats), [T1417 Input Capture](https://intel.threadlinqs.com/technique/T1417) (22 threats), [T1646 Exfiltration Over C2 Channel](https://intel.threadlinqs.com/technique/T1646) (22 threats), [T1426 System Information Discovery](https://intel.threadlinqs.com/technique/T1426) (21 threats). These are the techniques an intrusion set tends to chain with it, so they are the natural next places to look when it is observed.

6 tracked threat actors appear in the threats that use T1437; the most frequent are [MoYu Group](https://intel.threadlinqs.com/actor/MoYu%20Group) (2), [NSO Group](https://intel.threadlinqs.com/actor/NSO%20Group) (2), [APT37](https://intel.threadlinqs.com/actor/APT37) (1), [Cyber Av3ngers](https://intel.threadlinqs.com/actor/Cyber%20Av3ngers) (1), [Interlock](https://intel.threadlinqs.com/actor/Interlock) (1).

## Threat actors using it

- [MoYu Group](https://intel.threadlinqs.com/actor/MoYu%20Group) — 2
- [NSO Group](https://intel.threadlinqs.com/actor/NSO%20Group) — 2
- [APT37](https://intel.threadlinqs.com/actor/APT37) — 1
- [Cyber Av3ngers](https://intel.threadlinqs.com/actor/Cyber%20Av3ngers) — 1
- [Interlock](https://intel.threadlinqs.com/actor/Interlock) — 1
- [SHADOW-EARTH-053](https://intel.threadlinqs.com/actor/SHADOW-EARTH-053) — 1

## Tracked threats

The 30 most recent of 34 tracked threats that use T1437.

- [RatHat: AI-Powered Android Banking Trojan Abuses Accessibility Service and ADB to Steal Credentials, PINs…](https://intel.threadlinqs.com/threat/TL-2026-2592) — high — 2026-09-20
- [StreamRat Android Banking Trojan Spreads via Fake Streaming-Service Ads on Meta and TikTok](https://intel.threadlinqs.com/threat/TL-2026-2312) — high — 2026-09-03
- [Recorded Future H1 2026 Report: Actively Exploited CVEs Up 34%, Ransomware Adopts BYOVD and Post-Quantum…](https://intel.threadlinqs.com/threat/TL-2026-2310) — high — 2026-09-03
- [First Malware Built Specifically for Car Head Units (DoFun TWCore Update-Chain Abuse) Fuels BadBox Botnet](https://intel.threadlinqs.com/threat/TL-2026-2137) — high — 2026-08-25
- [ToxicPanda 2.0 Android Banking Trojan Expands to 349 Financial Institutions Across 16 Countries](https://intel.threadlinqs.com/threat/TL-2026-2128) — high — 2026-08-24
- [JarService/Zhima Multi-Stage Android Malware Targets DoFun Automotive Head Units, Linked to BADBOX Botnet](https://intel.threadlinqs.com/threat/TL-2026-2111) — high — 2026-08-22
- [WindRelay Android NFC Relay Malware Paired With SpyNote RAT Enables Real-Time Bank Card "Ghost Tapping" Fraud](https://intel.threadlinqs.com/threat/TL-2026-2003) — high — 2026-08-13
- [Octagon Android RAT — Fake Bahrain Civil Defense App Targets Mobile Endpoints via Multi-Stage Payload](https://intel.threadlinqs.com/threat/TL-2026-1881) — critical — 2026-08-05
- [Inside the Underground Business of the BTMOB Android RAT Malware-as-a-Service](https://intel.threadlinqs.com/threat/TL-2026-1841) — high — 2026-08-03
- [Octagon / OctagonPanel "Ward" Android RAT Impersonates Bahrain's "BH Alert" Civil Defense App to Steal…](https://intel.threadlinqs.com/threat/TL-2026-1832) — high — 2026-08-03
- [Copybara Android RAT Delivered via Fake N26 Support Vishing Calls](https://intel.threadlinqs.com/threat/TL-2026-1804) — high — 2026-08-01
- [Flying Eagle Android RAT: Leaked Source Code Powers 170 Active C2 Servers, Successor "Night Dragon" Emerges](https://intel.threadlinqs.com/threat/TL-2026-1757) — high — 2026-07-29
- [Research: Android ML Malware Detectors Collapse Without Context-Stage Analysis (PRAXIS vs. Drebin, MalScan…](https://intel.threadlinqs.com/threat/TL-2026-1753) — low — 2026-07-29
- [SparkKitty: Cross-Platform iOS/Android Stealer Using OCR to Harvest Crypto Wallet Seed Phrases from App…](https://intel.threadlinqs.com/threat/TL-2026-1717) — high — 2026-07-27
- [Albiriox Android Banking RAT-as-a-Service and the Barcode Scanner Play Store Supply-Chain Compromise…](https://intel.threadlinqs.com/threat/TL-2026-1667) — medium — 2026-07-24
- [ThreatsDay Bulletin: Iran-Linked CyberAv3ngers PLC Intrusion Campaign (AA26-097A) and OctagonPanel/Ward RAT…](https://intel.threadlinqs.com/threat/TL-2026-1659) — high — 2026-07-23
- ["BH Alert" Fake Bahrain Civil Defense App Deploys Four-Stage OctagonPanel Android Surveillance Platform](https://intel.threadlinqs.com/threat/TL-2026-1636) — high — 2026-07-22
- [RedWing: Android Malware-as-a-Service Spyware Operation Targeting Russian Financial Institutions](https://intel.threadlinqs.com/threat/TL-2026-1478) — high — 2026-07-18
- [Glitch SPY Android RAT Distributed via Fake Polish Rental App ("Tutaj Dom") Using Brokewell Loader](https://intel.threadlinqs.com/threat/TL-2026-1195) — high — 2026-07-10
- [European Parliament Member Investigating Pegasus Spyware Hacked With Pegasus (PWNYOURHOME Zero-Click Exploit…](https://intel.threadlinqs.com/threat/TL-2026-1099) — critical — 2026-07-03
- [Pegasus Spyware (PWNYOURHOME Zero-Click Chain) Used Against European Parliament PEGA Committee Member…](https://intel.threadlinqs.com/threat/TL-2026-1098) — high — 2026-07-03
- [Anatsa (TeaBot) Banking Trojan Distributed via Fake "File Horizon Explorer" Document Reader App on Google Play](https://intel.threadlinqs.com/threat/TL-2026-1059) — high — 2026-07-02
- [Popa Botnet — Android TV Box Residential-Proxy Malware (Vo1d/Mzmess Plugin) Linked to NetNut / Alarum…](https://intel.threadlinqs.com/threat/TL-2026-0858) — high — 2026-06-18
- [Rokarolla Android Banking Trojan Targets 217 Banking and Cryptocurrency Apps with 137 Remote Commands](https://intel.threadlinqs.com/threat/TL-2026-0826) — high — 2026-06-16
- [Pegasus Mercenary Spyware Used for State Surveillance of Azerbaijani Journalists, Activists, and Human…](https://intel.threadlinqs.com/threat/TL-2026-0751) — high — 2026-06-10
- [NSO Group Pegasus Spyware — WhatsApp Spearphishing Campaign Alleged in Meta Contempt Complaint (June 2026)](https://intel.threadlinqs.com/threat/TL-2026-0728) — high — 2026-06-09
- [FlagLeft — Microsoft 365 Android Apps Silent Account Takeover via Leftover setIsDebugMode(true) FOCI Token…](https://intel.threadlinqs.com/threat/TL-2026-0671) — high — 2026-06-03
- [BTMOB Android RAT — SpySolr Evolution Sold as MaaS via Telegram with APK Builder and Accessibility Services…](https://intel.threadlinqs.com/threat/TL-2026-0600) — high — 2026-05-27
- [OverlayPhantom Android Banking Trojan — Novel Overlay-Driven Credential Theft Targeting 180+ Banking and…](https://intel.threadlinqs.com/threat/TL-2026-0598) — critical — 2026-05-27
- [TrickMo.C Android Banking Trojan Adopts TON Blockchain ADNL for Covert C2 Targeting Banking and Crypto Users…](https://intel.threadlinqs.com/threat/TL-2026-0494) — high — 2026-05-11

## Related CVEs

CVEs referenced by the tracked threats that use T1437, most frequent first.

- [CVE-2021-30860](https://intel.threadlinqs.com/cve/CVE-2021-30860)
- [CVE-2023-41061](https://intel.threadlinqs.com/cve/CVE-2023-41061)
- [CVE-2023-41064](https://intel.threadlinqs.com/cve/CVE-2023-41064)
- [CVE-2016-4655](https://intel.threadlinqs.com/cve/CVE-2016-4655)
- [CVE-2016-4656](https://intel.threadlinqs.com/cve/CVE-2016-4656)
- [CVE-2016-4657](https://intel.threadlinqs.com/cve/CVE-2016-4657)
- [CVE-2019-3568](https://intel.threadlinqs.com/cve/CVE-2019-3568)
- [CVE-2021-26855](https://intel.threadlinqs.com/cve/CVE-2021-26855)
- [CVE-2023-27532](https://intel.threadlinqs.com/cve/CVE-2023-27532)
- [CVE-2024-4345](https://intel.threadlinqs.com/cve/CVE-2024-4345)
- [CVE-2025-68947](https://intel.threadlinqs.com/cve/CVE-2025-68947)
- [CVE-2026-20131](https://intel.threadlinqs.com/cve/CVE-2026-20131)

## Detection coverage

Threadlinqs maintains 53 detection rules mapped to T1437 (SPL 18, KQL 18, Sigma 17). Rule content is available to Blue tier accounts and above; this page shows counts only.

53 detection rules (SPL/KQL/Sigma), Blue and above: https://threadlinqs.com/pricing

## Sub-techniques

- T1437.001 Web Protocols — 9 tracked threats

## Links

- Canonical page: https://intel.threadlinqs.com/technique/T1437
- All techniques: https://intel.threadlinqs.com/techniques
- Full detection coverage and IOCs: https://intel.threadlinqs.com/mcp (Purple tier)