Tag: rclone

8 Attack Reports | 0 Vulnerabilities

Attack reports

Getting to the Crux (Ransomware) of the Matter

A new ransomware variant named Crux has been identified, claiming association with the BlackByte group. Observed in three separate incidents, Crux encrypts files with a .crux extension and leaves ransom notes. Initial access appears to involve Remote Desktop Protocol (RDP) using valid credentials. …

data exfiltration

process injection

Published: July 21, 2025

Downloadable IOCs: 3

A Hybrid Approach with Data Exfiltration and Encryption

The BlackSuit ransomware group, believed to be a rebrand of Royal ransomware, has emerged as a significant threat to organizations. This sophisticated attack combines data exfiltration and encryption, utilizing tools like Cobalt Strike for command and control, rclone for data exfiltration, and Blac…

data exfiltration

Published: July 12, 2025

Downloadable IOCs: 0

Medusa Ransomware Activity Continues to Increase

Medusa ransomware attacks jumped by 42% between 2023 and 2024. This increase in activity continues to escalate, with almost twice as many Medusa attacks observed in January and February 2025 as in the first two months of 2024.

Published: March 6, 2025

Downloadable IOCs: 45

The Anatomy of Abyss Locker Ransomware Attack

Abyss Locker (AKA Abyss ransomware) is a relatively new threat group that emerged in 2023, specializing in swift and decisive intrusions designed to cripple victims with ransomware. Abyss Locker was active throughout 2024, causing multiple incidents investigated by Sygnia. However, no recent techni…

Published: February 10, 2025

Downloadable IOCs: 15

Cobalt Strike and a Pair of SOCKS Lead to LockBit Ransomware

This report details an intrusion that began with the execution of a Cobalt Strike beacon masquerading as a Windows Media Configuration Utility. The threat actor used various tools for persistence, lateral movement, and data exfiltration, including SystemBC and GhostSOCKS proxies, Rclone, and PsExec…

lateral movement

Published: January 27, 2025

Downloadable IOCs: 21

EDR Bypass Testing Reveals Extortion Actor's Toolkit

Unit 42 investigated an extortion attempt where threat actors tested an AV/EDR bypass tool on rogue systems with Cortex XDR installed. The actors purchased network access via Atera RMM and used a BYOVD technique for the bypass tool. Researchers gained visibility into the actors' systems, uncovering…

cybercrime forums

threat actor profiling

Published: November 2, 2024

Downloadable IOCs: 0

Storm-0501: Ransomware attacks expanding to hybrid cloud environments

Microsoft has observed Storm-0501, a financially motivated cybercriminal group, conducting multi-staged attacks targeting hybrid cloud environments. The group compromises on-premises networks, performs lateral movement to cloud environments, exfiltrates data, steals credentials, creates persistent …

credential-theft

data-exfiltration

lateral-movement

Published: September 30, 2024

Linked vulnerabilities : CVE-2023-4966, CVE-2023-38203, CVE-2023-29300, CVE-2022-47966

Downloadable IOCs: 14

From IcedID to Dagon Locker Ransomware in 29 Days

This intrusion started in August 2023 with a phishing campaign that distributed IcedID malware. The phishing operation utilized the Prometheus Traffic Direction System (TDS) to deliver the malware and victims were directed to a fraudulent website, mimicking an Azure download portal.

Published: April 29, 2024

Downloadable IOCs: 33

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