6543 matches found
Detecting and preventing LSASS credential dumping attacks
Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...
Detecting and preventing LSASS credential dumping attacks
Obtaining user operating system OS credentials from a targeted device is among threat actors’ primary goals when launching attacks because these credentials serve as a gateway to various objectives they can achieve in their target organization’s environment, such as lateral movement. One techniqu...
Canadian Netwalker Ransomware Affiliate Sentenced to 20 Years in U.S. Prison
A former affiliate of the Netwalker ransomware has been sentenced to 20 years in prison in the U.S., a little over three months after the Canadian national pleaded guilty to his role in the crimes. Sebastien Vachon-Desjardins, 35, has also been ordered to forfeit $21,500,000 that was illicitly...
Cybersecurity awareness tips from Microsoft to empower your team to #BeCyberSmart
October is Cybersecurity Awareness Month, and I’m excited about what Microsoft and our partners in the industry have planned to help everyone stay CyberSmart. 2022 may have offered some respite from the previous year’s rush to enable a remote and hybrid workforce, but the increased use of persona...
Cybersecurity awareness tips from Microsoft to empower your team to #BeCyberSmart
October is Cybersecurity Awareness Month, and I’m excited about what Microsoft and our partners in the industry have planned to help everyone stay CyberSmart. 2022 may have offered some respite from the previous year’s rush to enable a remote and hybrid workforce, but the increased use of persona...
Cybersecurity awareness tips from Microsoft to empower your team to #BeCyberSmart
October is Cybersecurity Awareness Month, and I’m excited about what Microsoft and our partners in the industry have planned to help everyone stay CyberSmart. 2022 may have offered some respite from the previous year’s rush to enable a remote and hybrid workforce, but the increased use of persona...
Cybersecurity awareness tips from Microsoft to empower your team to #BeCyberSmart
October is Cybersecurity Awareness Month, and I’m excited about what Microsoft and our partners in the industry have planned to help everyone stay CyberSmart. 2022 may have offered some respite from the previous year’s rush to enable a remote and hybrid workforce, but the increased use of persona...
Ransomware review: September 2022
Malwarebytes Threat Intelligence builds a monthly picture of ransomware activity by monitoring the information published by ransomware gangs on their Dark Web leak sites. This information represents victims who were successfully attacked but opted not to pay a ransom. This article is also availab...
Ransomware-affected school district refuses to pay, gets stolen data released
Data stolen from Los Angeles Unified School District has been leaked online, after staff refused to pay the ransom related to a ransomware attack. The attackers threatened to release the data if the ransom wasn't paid, and so release it they did. The double extortion tactic Threatening to release...
Researchers Link Cheerscrypt Linux-Based Ransomware to Chinese Hackers
The recently discovered Linux-Based ransomware strain known as Cheerscrypt has been outed as a handiwork of a Chinese cyber espionage group known for operating short-lived ransomware schemes. Cybersecurity firm Sygnia attributed the attacks to a threat actor it tracks under the name Emperor...
A week in security (September 26 – October 2)
Last week on Malwarebytes Labs: Why almost everything we told you about passwords was wrong Two new Exchange Server zero-days in the wild Local government cybersecurity: 5 best practices Optus data breach "attacker" says sorry, it was a mistake Fast Company hacked to send obscene and racist...
Veritas NetBackup 安全漏洞
Veritas NetBackup is a storage service from Veritas, Inc. that is used to provide backup and recovery capabilities for enterprise environments. The software supports ransomware detection and backup protection for metadata, virtual environments, and other environmental data. A security vulnerabili...
State-Sponsored Hackers Likely Exploited MS Exchange 0-Days Against ~10 Organizations
Microsoft on Friday disclosed that a single activity group in August 2022 achieved initial access and breached Exchange servers by chaining the two newly disclosed zero-day flaws in a limited set of attacks aimed at less than 10 organizations globally. "These attacks installed the Chopper web she...
Local government cybersecurity: 5 best practices
It seems like not a day goes by where we dont hear about a local government cyberattack. Indeed, from 911 call centers to public schools, cyberattacks on local governments are as common as they are devastating. Just how often do threat actors attack local governments? A survey of 14 mainly larger...
Dismantling a Prolific Cybercriminal Empire: REvil Arrests and Reemergence
Dismantling a Prolific Cybercriminal Empire: REvil Arrests and Reemergence By John Fokker · September 29, 2022 We’ve recently seen reports that the REvil ransomware gang is back online after the January 2022 arrests of several its members by Russian authorities claiming to dismantle the group and...
Dismantling a Prolific Cybercriminal Empire: REvil Arrests and Reemergence
Dismantling a Prolific Cybercriminal Empire: REvil Arrests and Reemergence By John Fokker · September 29, 2022 We’ve recently seen reports that the REvil ransomware gang is back online after the January 2022 arrests of several its members by Russian authorities claiming to dismantle the group and...
Spyware disguises itself as Zoom downloads
Zoom video call software continues to be a staple in work environments. Despite a slow, post-lockdown easing back to the "old normal," many businesses still have remote workers, or people working in different geographies. It's no surprise then to see criminals continuing to abuse Zoom's popularit...
Calling in the ransomware negotiator, with Kurtis Minder: Lock and Code S03E20
Ransomware can send any company into crisis. Immediately following an attack, the notoriously disruptive malware can spread across networks and machines, locking up important files and rendering vital data almost useless for all employees. As we learned in a previous episode of Lock and Code, a...
BlackCat Ransomware Attackers Spotted Fine-Tuning Their Malware Arsenal
The BlackCat ransomware crew has been spotted fine-tuning their malware arsenal to fly under the radar and expand their reach. "Among some of the more notable developments has been the use of a new version of the Exmatter data exfiltration tool, and the use of Eamfo, information-stealing malware...
