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THE HUNTER’S LEDGER
ATT&CK Technique · Stealth / Privilege Escalation
T1055 Process Injection
Mapped by 10 reports, 9 detection rules and 6 tracked actors on The Hunters Ledger. Technique page on attack.mitre.org.

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Reports

Each report maps this technique in its own ATT&CK table, at the confidence the report states. The link opens that table.

Report Sep 2026 · under Stealth · MODERATE
Sliver C2 Windows Post-Exploitation Staging, 193.233.202.17
Report Aug 2026 · under Stealth · HIGH
CloudSync: An Assembler's Intrusion Toolkit
Report Apr 2026 · under Stealth · HIGH
AdaptixC2 Open Directory Exposure (45.130.148.125)
Report Apr 2026 · under Stealth · HIGH
OpenStrike Beacon Toolkit (172.105.0.126)
Report Apr 2026 · under Stealth · HIGH
Open Directory at 193.56.255.154 — XiebroC2 v3.1 & Covenant C2
Report Feb 2026 · under Stealth · HIGH
Remcos RAT OpenDirectory Campaign
Report Jan 2026 · under Stealth · HIGH
Arsenal-237 New Files: Advanced Toolkit Analysis
Report Dec 2025 · under Privilege Escalation · HIGH
PULSAR RAT (server.exe) — Technical Analysis & Business Risk Assessment

Detection rules

Rules whose ATT&CK coverage line names this technique, by detection page. The link opens the page's coverage table.

Detection rules Aug 2026 · 2 rules
CloudSync: An Assembler's Intrusion Toolkit
Paralell Injector and SvchostPayload Type Names (YARA, Detection); Wscript To PowerShell To MSBuild Execution Chain Without Project File (SIGMA, Detection)
Detection rules Apr 2026 · 3 rules
AdaptixC2 Open Directory Exposure (45.130.148.125)
AdaptixC2 Operator .NET Injector: si_build Build Fingerprint (YARA, Hunting); PowerShell Creating a Remote Thread in a Long-Lived Windows Host Process (SIGMA, Detection); Suspicious .NET Assembly Image Load with Operator si_build Build Fingerprint (SIGMA, Hunting)
Detection rules Apr 2026 · 1 rule
Open Directory at 193.56.255.154 — XiebroC2 v3.1 & Covenant C2
XiebroC2 v3.1 Go TCP Implant: Source-Code Artifact Combination (YARA, Detection)
Detection rules Feb 2026 · 3 rules
Remcos RAT OpenDirectory Campaign
Remcos Process Injection (Mutex-Anchored) (YARA, Detection); Remcos Process Injection (Generic API Cluster) (YARA, Hunting); Suspicious Process Access from AppData to Browser or Explorer Process (SIGMA, Hunting)

Tracked actors

Designations whose reports map this technique.

  • UTA-2026-002: XiebroC2 and Covenant operator working from a Chinese-language build environment
  • UTA-2026-004: Developer of the OpenStrike multi-implant C2 toolkit, with a cracked Cobalt Strike arsenal
  • UTA-2026-006: Stock AdaptixC2 operator with an operator-written PowerShell and .NET injection chain
  • UTA-2026-007: HijackLoader customer running a 15-month multi-vector phishing campaign into an AsyncRAT-class RAT
  • UTA-2026-021: Assembler-model intrusion operator staging other actors' tooling against one German victim forest
  • UTA-2026-024: Windows post-exploitation intrusion set with Sliver and a blockchain-resolved implant

ATT&CK v19.2. MITRE ATT&CK® is a registered trademark of The MITRE Corporation; technique names are MITRE's and link to MITRE's own pages. The mapping on each linked page is this publication's reading of its own evidence.