Inside an Exposed WebDAV Malware Delivery Lab


An MDR alert recently led our team to an exposed server that was doing more than hosting payloads. It was functioning as a fully operational malware delivery lab. Containing over 1,000 artifacts, the infrastructure served as a QA hub where attackers systematically tested delivery paths, social engineering lures, and WebDAV execution methods.

Our analysis reveals an interesting shift in adversary operations: attackers are adopting generative AI to move beyond individual exploits and operate like modern software product teams. By leveraging LLMs for rapid lure generation, detailed README documentation, and automated testing, they are significantly accelerating their development cycle.

This incident underscores the imperative of preemptive security. By unifying exposure management with detection and response, we did not just catch a single campaign; we gained visibility into the attacker’s entire delivery pipeline. Although the server hosted many malware samples, the more interesting find was the view into the attacker’s workflow. The exposed infrastructure showed how the operator tested delivery paths, packaged lures, staged payloads, and monitored delivery activity. All of it with the help of generative AI.

Read more…
Source:  Rapid7 News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Ransomware group Lockbit appears to have been hacked

    May 8, 2025

    The ransom-seeking cybercriminals behind the extortion group Lockbit appear to have suffered a breach of their own, according to a rogue post to one of the group’s websites and security analysts who follow the gang. On Wednesday one of Lockbit’s darkweb sites was replaced with a message saying, “Don’t do crime CRIME IS BAD xoxo from ...

  • Cyber criminals impersonate payroll, HR and benefits platforms to steal information and funds

    May 8, 2025

    The relentless battle against online fraud is a constant evolution, a digital chase where security teams and malicious actors continually adapt. The increasing sophistication of attacks is blurring the lines between legitimate user behavior and impersonation attempts. The campaign we are exposing today is a reminder that even the most advanced security technologies do not dissuade ...

  • A timeline of South Korean telco giant SKT’s data breach

    May 8, 2025

    In April, South Korea’s telco giant SK Telecom (SKT) was hit by a cyberattack that led to the theft of personal data on approximately 23 million customers, equivalent to almost half of the country’s 52 million residents. At a National Assembly hearing in Seoul on Thursday, SKT chief executive Young-sang Ryu said about 250,000 users have ...

  • Multiple vulnerabilities in SonicWall SMA 100 series (FIXED)

    May 7, 2025

    In April of 2025, Rapid7 discovered and disclosed three new vulnerabilities affecting SonicWall Secure Mobile Access (“SMA”) 100 series appliances (SMA 200, 210, 400, 410, 500v). These vulnerabilities are tracked as CVE-2025-32819, CVE-2025-32820, and CVE-2025-32821. An attacker with access to an SMA SSLVPN user account can chain these vulnerabilities to make a sensitive system directory writable, ...

  • Russia: Damage from phone scammers in Russia exceeded $2.1 bln in 2024

    May 7, 2025

    More than 640,000 cases of remote fraud were reported in Russia in 2024, while the damage they caused exceeded 170 billion rubles ($2.1 bln), the Public Relations Center of the Federal Security Service (FSB), reported. According to the FSB, “the measures taken stopped the functioning of the illicit virtual communications center, seized more than 1,200 SIM ...

  • State of ransomware in 2025

    May 7, 2025

    With the International Anti-Ransomware Day just around the corner on May 12, Kaspersky explores the ever-changing ransomware threat landscape and its implications for cybersecurity. According to Kaspersky Security Network data, the number of ransomware detections decreased by 18% from 2023 to 2024 – from 5,715,892 to 4,668,229. At the same time, the share of users affected ...