Reddit’s employees phished, healthcare firms targeted and the new Screenshotter malware
Hackers phish Reddit employees to steal internal documents, North Korean hackers extort healthcare firms and the custom Screenshotter malware. Catch all this and more in this week’s edition of Cybersecurity Weekly.
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1. Reddit breach sees hackers access source code and internal documents
Reddit has disclosed that it fell victim to a cyberattack that enabled hackers to access its systems and steal source code and internal documents. The social news aggregation platform blamed the incident on a phishing attack targeting Reddit's employees and learned about it after an affected employee self-reported the breach. After investigation, the company says the stolen data includes limited details for existing and previous employees and company contacts. Additionally, it stressed that it didn’t find any evidence to suggest that its core production systems were breached.
2. North Korean threat actors target South Korean and U.S. healthcare with ransomware
State-sponsored hackers from North Korea are targeting the healthcare sector to fund their operations, according to a warning from South Korea and U.S. intelligence agencies. The ongoing campaign demands cryptocurrency ransomware in exchange for reinstating access to encrypted files. Additionally, the hackers work with foreign intermediaries and hide behind virtual networks to avoid being traced back to North Korea. Further, They use publicly available tools such as Deadbolt, BitLocker, and Ryuk in their attacks and sometimes portray themselves as another ransomware gang.
3. Hacker creates new Screenshotter malware to identify highly lucrative targets
A hacker has developed a new malware capable of taking screenshots of infected computers and identifying highly lucrative targets. Dubbed Screenshotter, the malware is thought to be used by a new threat actor nicknamed TA886 for targeting companies in the United States and Germany. Once the malware has taken the screenshots, the adversary carefully examines them to see if a target is worth continuing their attack on. It is believed that the threat actor’s main goal is to make a profit, carefully selecting their targets by evaluating the information they have access to.
4. New IIoT device vulnerabilities pose threat to critical infrastructure
38 security weaknesses have been found in wireless industrial internet of things (IIoT) devices from four different manufacturers, presenting a major vulnerability for potential attackers looking to target operational technology (OT) systems. Israeli cybersecurity firm Otorio warns that threat actors take advantage of these flaws to bypass security and infiltrate critical infrastructure networks. According to security researcher Roni Gavrilov, some of these weaknesses can be linked to provide external attackers with direct access to various internal OT networks via the internet.
5. Tor networks attacked in a massive DDoS campaign
The Tor Project has disclosed it has been suffering from various different DDoS attacks for the past seven months. Tor’s Executive Director Isabela Dias Fernandes said that the attacks impacted the network so severely at some points that users were not able to access onion services or load pages. She further stated that the company has not yet identified the goal of these attacks but is working hard to mitigate the impact and defend the network from threat actors.
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In this Series
- Reddit’s employees phished, healthcare firms targeted and the new Screenshotter malware
- Canada Flipper Zero ban and new RustDoor macOS malware
- AnyDesk hack and iPhone patched kernel flaw
- Tesla Pwn2Own hacks and iOS push alerts abuse
- TeamViewer breach and Atlassian Jira outage
- Moscow ISP revenge hack and Microsoft Sharepoint bug warning
- X verified accounts hack and SpectralBlur macOS malware
- CISA default password alert and SOHO KV-botnet campaign
- New 5G modem flaws and Apple’s data breach report
- Staples cyberattack, Agent Racoon backdoor and other news
- British Library ransomware attack, Windows fingerprint authentication bypass
- Samsung UK data breach and ransomware actor’s SEC complaint
- ICBC ransomware attack and ChatGPT outage
- Boeing Lockbit ransomware attack, Apple’s vulnerability and WhatsApp mods spyware
- Octo Tempest hacking group and new iLeakage attack
- Okta support system breach and Google Ads fake KeePass campaign
- Skype DarkGate malware, Shadow PC breach and AvosLocker ransomware warning
- 23andMe data theft, MGM’s $100M ransomware loss and the Azure VM breach
- Malicious Bing Chat ads and FBI’s dual ransomware warning
- T-Mobile app glitch and fake Booking.com pages
- Airbus data leak, Cisco Webex ad malware and €345 million TikTok fine
- New Apple iMessage exploit and CISA’s Apache RocketMQ warning
- Forever 21 data breach and Android BadBazaar espionage
- Duolingo data leak and the Met Police IT hack
- Discord.io data breach and Ivanti Avalanche vulnerabilities
- UK Electoral Commission hack and Microsoft’s role in China email breach
- Salesforce email zero-day exploit and Microsoft Power Platform criticism
- Airlines disclose pilot data breach and the Microsoft Teams bug
- GravityRAT Android Trojan and new MOVEit Transfer flaw
- University of Manchester hack and Honda API flaws
- MOVEit zero-day exploit and the U.S. iPhone hack accusation
- Daam Android virus and Barracuda zero-day flaw
- TP-Link router exploit and 18-year-old charged with hacking DraftKings accounts
- Discord support hack and Toyota location data leak
- Twitter private tweets bug and Cisco phone router vulnerabilities
- Cisco XSS zero-day flaw and PaperCut vulnerabilities
- 3CX hackers hit critical infrastructure and secondhand routers cause security concerns
- Hyundai data breach and Microsoft’s warning to accountants
- Western Digital cloud breach and the MSI ransomware hack
- TMX loan data breach, Italy bans ChatGPT and WordPress Elementor Pro exploit
- ChatGPT data leak and Gmail message theft by North Korean hackers
- U.S. federal agency hack and the return of FakeCalls Android malware
- Massive AT&T data breach and fake jobs targeting security researchers
- U.S. Marshals service breach and TPM 2.0 security flaws
- Dangerous ChatGPT apps and food giant Dole ransomware attack
- GoDaddy malware installations, record-breaking DDoS attack and the new WhiskerSpy malware
- JD Sports data breached, VMware ESXi servers attacked and the HeadCrab malware
- Yandex source code leaked, 4500+ WordPress sites hacked and the new SwiftSlicer malware
- PayPal accounts breached, Fortinet VPN flaw exploited, and the new Hook malware
- Twitter users’ emails leaked, ChatGPT used to write malware and Slack’s repository breach
- Uber data leaked, 48 DDoS-for-hire domains seized and Facebook posts phishing attack
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