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The Sarcoma ransomware group has claimed responsibility for a cyberattack against Unimicron, a major Taiwanese printed circuit board (PCB) manufacturer. The attackers are threatening to release 377 GB of allegedly stolen data, including SQL files and documents, if the company refuses to pay a ransom. Sarcoma listed Unimicron on its leak site, publishing samples of the exfiltrated files.

Despite confirming that its China-based subsidiary, Unimicron Technology (Shenzhen) Corp., experienced a ransomware intrusion, Unimicron has not yet confirmed the data breach. The company noted that it is currently conducting an ongoing investigation into the incident that disrupted operations on January 30th. Sarcoma has emerged as a leading threat, having claimed attacks against dozens of organizations since October.

ImgSrc: files.cyberriskalliance.com

References:

• cyberinsider.com - Taiwanese PCB Giant Unimicron Breached by Sarcoma Ransomware - 8d
• Security Affairs - Sarcoma ransomware gang claims the theft of sensitive data from PCB maker Unimicron - 8d
• www.bleepingcomputer.com - Sarcoma ransomware claims breach at giant PCB maker Unimicron - 8d
• MSSP feed for Latest - Unimicron Purportedly Subjected to Sarcoma Ransomware Attack - 8d
• @BleepingComputer - A relatively new ransomware operation named 'Sarcoma' has claimed responsibility for an attack against the Unimicron printed circuit boards (PCB) maker in Taiwan. - 8d
• CyberInsider - CyberInsider reports the Taiwanese PCB giant Unimicron was breached by Sarcoma ransomware. - 8d
• SCM feed for Security Strategy, Plan, Budget - Unimicron purportedly subjected to Sarcoma ransomware attack - 7d

Classification:

• HashTags: Ransomware DataBreach CyberAttack
• Company: Unimicron
• Target: Unimicron
• Attacker: Sarcoma
• Feature: data theft
• Type: Ransomware
• Severity: Major