MalwareRansomwareExploits 3 CVEs

Backdoor.Turn

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EXPLOITED CVES

Vulnerabilities exploited

3 CVEs Mallory has correlated with this family across public research and vendor advisories. Each row links to the full Mallory page for that vulnerability.

3 CVES

CVE-2023-52271Arbitrary PPL Process Termination in Topaz Antifraud wsftprm.sysExploited in the wild

Next, they used BYOVD techniques with multiple drivers such as Huawei’s HWAuidoOs2Ec.sys, Topaz Antifraud wsftprm.sys (CVE-2023-52271), Tower of Fantasy GameDriverx64.sys (CVE-2025-61155), and K7 Security K7RKScan.sys (CVE-2025-1055), to obtain kernel-level privileges and terminate security tools on the host.

via bleeping computerbleepingcomputer.com

CVE-2025-61155Arbitrary Process Termination via GameDriverX64.sys IOCTL Access Control FlawExploited in the wild

via bleeping computerbleepingcomputer.com

CVE-2025-1055Arbitrary privileged process termination via K7 Security K7RKScan.sys IOCTLsExploited in the wild

via bleeping computerbleepingcomputer.com

MITRE ATT&CK

Techniques & procedures

6 distinct techniques documented for this family, organized by ATT&CK tactic.

Privilege Escalation

1 technique

T1055Process InjectionEvidence1

The Backdoor.Turn remote access trojan (RAT) was injected into ‘DbgView64.exe’ after deploying the ransomware, suggesting that it might be intended for persistence or future access.

Stealth

1 technique

T1055Process InjectionEvidence1

The Backdoor.Turn remote access trojan (RAT) was injected into ‘DbgView64.exe’ after deploying the ransomware, suggesting that it might be intended for persistence or future access.

Credential Access

1 technique

T1555Credentials from Password StoresEvidence1

Its capabilities include command execution, process creation, network scanning, TLS certificate capturing, LDAP/Active Directory searching, website title collection, and browser credential theft.

Discovery

2 techniques

T1016System Network Configuration DiscoveryEvidence1

Its capabilities include command execution, process creation, network scanning, TLS certificate capturing, LDAP/Active Directory searching, website title collection, and browser credential theft.

T1018Remote System DiscoveryEvidence1

Its capabilities include command execution, process creation, network scanning, TLS certificate capturing, LDAP/Active Directory searching, website title collection, and browser credential theft.

Command and Control

2 techniques

T1071Application Layer ProtocolEvidence1

DragonForce ransomware used a custom malware named 'Backdoor.Turn' to hide command-and-control traffic inside Microsoft Teams relay infrastructure.

T1090.002External ProxyEvidence1

Backdoor.Turn abuses Teams' TURN infrastructure by obtaining an anonymous Teams visitor token, using a legitimate Microsoft TURN relay during connection setup, and then connecting to the attacker's command-and-control (C2) server.

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

1 SOURCESView more in app

bleeping computerNews

Jun 16, 2026

Ransomware gang abuses Microsoft Teams relays to hide malicious traffic

A custom Go-based remote access trojan that abuses Microsoft Teams TURN relay infrastructure to mask command-and-control traffic as trusted Teams-related communications. Reported capabilities include command execution, process creation, network scanning, TLS certificate capture, LDAP/Active Directory searching, website title collection, and browser credential theft.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets match these IOCs, which detections are missing, which campaigns to expect next, and what to do in the next 30 minutes.

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IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities3

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping6

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.