Links submitted by the Threat Radar community and AI curated for defenders.

Community Curated

AlienVault OTX General

Real-world exploitation and exposure telemetry from the OffSeq Mirage honeypot fleet and Sonar internet scans — which CVEs attackers are actually exploiting and which are exposed in the wild, plus attacker IoCs. All IPs are masked; no raw victim or sensor identity is ever published.

OffSeq Mirage

Bleeping Computer

SANS ISC Handlers Diary

SecurityWeek

Threatpost

Latest exploits, shellcode, and vulnerability proofs-of-concept from Exploit-DB

Exploit-DB RSS Feed

Reddit ExploitDev

Reddit ThreatIntel

Reddit BlueTeam

Reddit Reverse Engineering

Reddit Malware

Reddit Cybersecurity

Reddit NetSec

ThreatFox MISP Feed

CIRCL OSINT Feed

NCSC UK

JVN Japan

GCP Compute Engine Security

GCP Kubernetes Security

AWS Security Bulletins

Tenable Research

CERT/CC

Google Project Zero

Microsoft Security Blog

Cisco Talos

Zero Day Initiative

Palo Alto Unit 42

Krebs on Security

Kaspersky Security Blog

Check Point Research

GCVE Database

CVE Database V5

Reddit InfoSec News

The Hacker News

Dark Reading

AlienVault OTX Vulnerabilities

AlienVault OTX Malware

An initial access broker exploited leaked Machine Keys on ASP.NET sites to gain unauthorized access to organizations. The group, tracked as TGR-CRI-0045, targeted industries in Europe and the U.S.including finance, manufacturing, and technology. They used ASP.NET View State deserialization to execute malicious payloads in server memory, minimizing forensic artifacts. The attackers deployed post-exploitation tools for persistence and privilege escalation. The campaign began in October 2024, with increased activity from January to March 2025. Organizations are advised to review and remediate compromised Machine Keys following Microsoft's guidance. The threat group is possibly linked to Gold Melody based on overlapping indicators and tactics.

This threat involves an initial access broker group identified as TGR-CRI-0045 exploiting leaked Machine Keys from ASP.NET web applications to gain unauthorized access to targeted organizations. Machine Keys in ASP.NET are cryptographic keys used to protect View State data, authentication tokens, and other sensitive information. If these keys are leaked or compromised, attackers can manipulate or forge View State data, enabling deserialization attacks that execute arbitrary code in server memory. The attackers leverage ASP.NET View State deserialization vulnerabilities to run malicious payloads directly in memory, which reduces forensic footprints and complicates detection. After initial access, the threat actors deploy post-exploitation tools to maintain persistence and escalate privileges within the compromised environment. The campaign, active since October 2024 with heightened activity from January to March 2025, targets industries including finance, manufacturing, and technology sectors primarily in Europe and the United States. The group’s tactics and indicators overlap with those attributed to the Gold Melody threat actor, suggesting possible linkage. The exploitation technique focuses on abusing leaked cryptographic keys rather than exploiting software vulnerabilities directly, making traditional patching ineffective. Organizations are advised to audit and rotate Machine Keys following Microsoft's remediation guidance to invalidate compromised keys and prevent further exploitation. Indicators of compromise include multiple IP addresses and file hashes associated with the attack infrastructure and payloads. The attack chain involves initial access via crafted View State payloads, in-memory execution of malicious code, and subsequent lateral movement and privilege escalation using known techniques such as token manipulation and service persistence. The threat leverages IIS-hosted ASP.NET applications, which are prevalent in enterprise environments, making this a significant risk vector for organizations relying on this technology stack.

Detailed information about Exploitation of Leaked Machine Keys by Initial Access Broker. Get real-time updates, technical details, and mitigation strategies.

Exploitation of Leaked Machine Keys by Initial Access Broker - Live Threat Intelligence - Threat Radar | OffSeq.com

Exploitation of Leaked Machine Keys by Initial Access Broker

Threats Tagged 'txportmap'

Stop chasing alerts. Route them.

Check if your credentials are on the dark web

Filter Threats

Threats Tagged 'txportmap'

Lead Pen Test Professional