Cybersecurity Weekly: REvil shuts down, PowerShell flaw, iOS 15 hacked
REvil ransomware shuts down again after Tor sites were hijacked. Microsoft asks admins to patch PowerShell to fix WDAC bypass. Experts hacked a fully patched iOS 15 running on an iPhone 13. All this, and more, in this week’s edition of Cybersecurity Weekly.
1. REvil ransomware shuts down again after Tor sites were hijacked
The REvil ransomware operation has likely shut down once again after an unknown person hijacked their Tor payment portal and data leak blog. The Tor sites went offline earlier today, with a threat actor affiliated with the REvil operation posting to the XSS hacking forum that someone hijacked the gang's domains.
2. Microsoft asks admins to patch PowerShell to fix WDAC bypass
Microsoft has asked system administrators to patch PowerShell 7 against two vulnerabilities allowing attackers to bypass Windows Defender Application Control enforcements and gain access to plain text credentials. To exploit the vulnerability, an attacker needs administrator access on a local machine where PowerShell is running.
3. Experts hacked a fully patched iOS 15 running on iPhone 13
In this year's Tianfu Cup, white hat hackers earned $1.88 million demonstrating vulnerabilities in popular software. One of the exploits demonstrated at the contest immediately attracted the attention of the media with a zero-click remote code execution exploit against a fully patched iOS 15 running on the latest iPhone 13.
4. Accenture discloses data breach after LockBit ransomware attack
Global IT consultancy giant Accenture disclosed a data breach after the LockBit ransomware attack that hit the company in August 2021. The ransomware gang stole databases containing over 6TB of data and were demanding a $50M ransom. The experts also claimed that the hack was the result of an insider job.
5. How Coinbase phishers steal one-time passwords
A recent phishing campaign targeting Coinbase users shows thieves are getting smarter about phishing one-time passwords needed to complete the login process. It also shows that phishers are attempting to sign up for new Coinbase accounts by the millions as part of an effort to identify email addresses that are already associated with active accounts.
6. Credit card PINs can be guessed even when covering the ATM pad
Researchers proved that it’s possible to train an AI algorithm to guess 4-digit card PINs 41% of the time, even if the victim is covering the pad with their hands. The model can exclude keys based on the non-typing hand coverage, and deduces the pressed digits from the movements of the other hand by evaluating the topological distance between two keys.
7. Trickbot group expanding malware distribution channels
The operators behind the pernicious TrickBot malware have resurfaced with new tricks that aim to increase its foothold by expanding its distribution channels, ultimately leading to the deployment of ransomware such as Conti. These cybercrime vendors are infecting corporate networks with malware by hijacking email threads.
8. Twitter suspends accounts used to snare security researchers
Twitter suspended two accounts specifically used to trick security researchers into downloading malware in a long-running cyber-espionage campaign. The campaign was first discovered by the Google Threat Analysis Group in January and has remained active throughout the year.
9. Ad-blocking Chrome extension injecting ads in Google search pages
A new deceptive ad injection campaign has been leveraging an ad blocker extension for Google Chrome and Opera web browsers to sneakily insert ads and affiliate codes on websites. While AllBlock is designed to block ads legitimately, the malicious JavaScript code is injected into every new tab opened on the browser.
10. Over 30 countries pledge to fight ransomware attacks in global meeting
Representatives from the U.S., the European Union and 30 other countries pledged to mitigate the risk of ransomware and harden the financial system from exploitation with the goal of disrupting the ecosystem, calling it an escalating global security threat with serious economic and security consequences.
In this Series
- Cybersecurity Weekly: REvil shuts down, PowerShell flaw, iOS 15 hacked
- 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
- Reddit’s employees phished, healthcare firms targeted and the new Screenshotter 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
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