# T1048.002 Exfiltration Over Asymmetric Encrypted Non-C2 Protocol

> As of 2026-10-14, T1048.002 (Exfiltration Over Asymmetric Encrypted Non-C2 Protocol) appears in 10 tracked threats, first reported 2026-05-13 and most recently 2026-10-13, with linked actors including Luna Moth, Silent Ransom Group, INC Ransom; it most often appears alongside T1071.001 (Web Protocols).

- **Tracked threats:** 10 (2 critical, 8 high)
- **First seen:** 2026-05-13
- **Last seen:** 2026-10-13
- **Threat actors:** 8
- **Detection rules:** 18 (counts only; Blue tier and above)

## Key facts

- **ID:** T1048.002
- **Framework:** MITRE ATT&CK
- **Tactics:** Exfiltration
- **Matrix:** Enterprise
- **Parent:** T1048
- **Data as of:** 2026-10-14
- **MITRE:** https://attack.mitre.org/techniques/T1048/002/

## Activity timeline

T1048.002 first appeared in tracked threats on 2026-05-13 and was most recently reported on 2026-10-13. The busiest month was 2026-05 with 3 reports, and 10 of the 10 threats were reported in the twelve months to 2026-10.

## How adversaries use it

T1048.002 Exfiltration Over Asymmetric Encrypted Non-C2 Protocol is catalogued by MITRE ATT&CK under the Exfiltration tactic in the Enterprise matrix, as a sub-technique of [T1048 Exfiltration Over Alternative Protocol](https://intel.threadlinqs.com/technique/T1048). Threadlinqs maps 10 of 2824 tracked threats (0.4%) to it; by severity that is 2 critical, 8 high.

Threats that use T1048.002 most often also use [T1071.001 Web Protocols](https://intel.threadlinqs.com/technique/T1071.001) (7 threats), [T1005 Data from Local System](https://intel.threadlinqs.com/technique/T1005) (6 threats), [T1685 Disable or Modify Tools](https://intel.threadlinqs.com/technique/T1685) (6 threats), [T1036.005 Match Legitimate Resource Name or Location](https://intel.threadlinqs.com/technique/T1036.005) (5 threats), [T1657 Financial Theft](https://intel.threadlinqs.com/technique/T1657) (5 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.

8 tracked threat actors appear in the threats that use T1048.002; the most frequent are [Luna Moth](https://intel.threadlinqs.com/actor/Luna%20Moth) (2), [Silent Ransom Group](https://intel.threadlinqs.com/actor/Silent%20Ransom%20Group) (2), [INC Ransom](https://intel.threadlinqs.com/actor/INC%20Ransom) (1), [INC Ransom - G1032](https://intel.threadlinqs.com/actor/INC%20Ransom%20-%20G1032) (1), [INC Ransomware](https://intel.threadlinqs.com/actor/INC%20Ransomware) (1).

## Mitigations

MITRE ATT&CK lists 4 mitigations for T1048.002.

- [M1030 Network Segmentation](https://attack.mitre.org/mitigations/M1030/)
- [M1031 Network Intrusion Prevention](https://attack.mitre.org/mitigations/M1031/)
- [M1037 Filter Network Traffic](https://attack.mitre.org/mitigations/M1037/)
- [M1057 Data Loss Prevention](https://attack.mitre.org/mitigations/M1057/)

## Data sources

Telemetry that can reveal T1048.002, per MITRE ATT&CK.

- Command — Command Execution
- File — File Access
- Network Traffic — Network Connection Creation, Network Traffic Content, Network Traffic Flow

## Threat actors using it

- [Luna Moth](https://intel.threadlinqs.com/actor/Luna%20Moth) — 2
- [Silent Ransom Group](https://intel.threadlinqs.com/actor/Silent%20Ransom%20Group) — 2
- [INC Ransom](https://intel.threadlinqs.com/actor/INC%20Ransom) — 1
- [INC Ransom - G1032](https://intel.threadlinqs.com/actor/INC%20Ransom%20-%20G1032) — 1
- [INC Ransomware](https://intel.threadlinqs.com/actor/INC%20Ransomware) — 1
- [Lynx](https://intel.threadlinqs.com/actor/Lynx) — 1
- [SHADOW-WATER-063](https://intel.threadlinqs.com/actor/SHADOW-WATER-063) — 1
- [UNC3753](https://intel.threadlinqs.com/actor/UNC3753) — 1

## Tracked threats

10 tracked threats use T1048.002.

- [VerCellBreak: Vercel Sandbox network-allowlist bypass lets rogue AI agents exfiltrate data via crafted mTLS…](https://intel.threadlinqs.com/threat/TL-2026-3425) — high — 2026-10-13
- [Silent Ransom Group (Luna Moth) Targets US Law Firms via IT Support Impersonation and Physical Intrusion](https://intel.threadlinqs.com/threat/TL-2026-2176) — high — 2026-08-28
- [Troutman Pepper Locke LLP Data Theft Extortion by SilentRansomGroup (Repeat Attack Including Physical…](https://intel.threadlinqs.com/threat/TL-2026-2103) — high — 2026-08-21
- [AI-Agent-Driven Offensive Operation: Mass Cryptocurrency Wallet and Credential Compromise via Autonomous AI…](https://intel.threadlinqs.com/threat/TL-2026-2070) — critical — 2026-08-19
- [FortiBleed: Russian-Speaking Credential-Harvesting Campaign Against Internet-Exposed FortiGate Firewalls and…](https://intel.threadlinqs.com/threat/TL-2026-0895) — critical — 2026-06-21
- [CryptoBandits Windows Crypto-Clipper Campaign: USB LNK Worm + Tor Hidden-Service C2…](https://intel.threadlinqs.com/threat/TL-2026-0854) — high — 2026-06-18
- [AI-Generated ClickFix Campaign Delivers SmartRAT/Banana RAT PowerShell Banking Trojan Targeting Brazilian…](https://intel.threadlinqs.com/threat/TL-2026-0841) — high — 2026-06-17
- [First AI-Agent-Driven Cloud Intrusion — Marimo CVE-2026-39987 RCE → AWS Secrets Manager → SSH Bastion →…](https://intel.threadlinqs.com/threat/TL-2026-0619) — high — 2026-05-28
- [Silent Ransom Group (Luna Moth / Chatty Spider / UNC3753) — IT Support Impersonation Campaign Targeting US…](https://intel.threadlinqs.com/threat/TL-2026-0612) — high — 2026-05-28
- [GemStuffer Campaign — RubyGems Registry Abused as Exfiltration Channel for UK Local Government Data](https://intel.threadlinqs.com/threat/TL-2026-0505) — high — 2026-05-13

## Related CVEs

CVEs referenced by the tracked threats that use T1048.002, most frequent first.

- [CVE-2026-39987](https://intel.threadlinqs.com/cve/CVE-2026-39987)
- [CVE-2026-60137](https://intel.threadlinqs.com/cve/CVE-2026-60137)
- [CVE-2026-63030](https://intel.threadlinqs.com/cve/CVE-2026-63030)

## Detection coverage

Threadlinqs maintains 18 detection rules mapped to T1048.002 (SPL 7, KQL 6, Sigma 5). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

## Parent technique

[T1048 Exfiltration Over Alternative Protocol](https://intel.threadlinqs.com/technique/T1048) — 159 tracked threats at the technique level.

## Links

- Canonical page: https://intel.threadlinqs.com/technique/T1048.002
- All techniques: https://intel.threadlinqs.com/techniques
- Full detection coverage and IOCs: https://intel.threadlinqs.com/mcp (Purple tier)
