VideoBytes: Ryuk Ransomware Targeting US Hospitals

Hello Folks! In this Videobyte, we’re talking about why hospitals are being targeted by the Ryuk ransomware, what tricks they are using to pull this off and what their motivations might be. Ryuk ransomware is being spread to hospitals using targeted phishing emails that infect systems with the...

SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2020:2722-1)

This update for samba fixes the following issues : - ZeroLogon: An elevation of privilege was possible with some non default configurations when an attacker established a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol MS-NRPC CVE-2020-1472...

SUSE SLES15 Security Update : samba (SUSE-SU-2020:2719-1)

This update for samba fixes the following issues : ZeroLogon: An elevation of privilege was possible with some configurations when an attacker established a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol MS-NRPC CVE-2020-1472, bsc1176579...

SUSE SLES12 Security Update : samba (SUSE-SU-2020:2721-1)

"This update for samba fixes the following issues : ZeroLogon: An elevation of privilege was possible with some configurations when an attacker established a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol MS-NRPC CVE-2020-1472, bsc1176579...

SUSE SLES12 Security Update : samba (SUSE-SU-2020:2724-1)

This update for samba fixes the following issues : ZeroLogon: An elevation of privilege was possible with some configurations when an attacker established a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol MS-NRPC CVE-2020-1472, bsc1176579...

SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2020:2730-1)

"This update for samba fixes the following issues : ZeroLogon: An elevation of privilege was possible with some non default configurations when an attacker established a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol MS-NRPC CVE-2020-1472,...

Exploit for CVE-2020-1472

CVE-2020-1472 is a vulnerability in the Windows Netlogon service that allows an unauthenticated attacker to set the password of the Domain Controller account to an empty string NT hash=31d6cfe0d16ae931b73c59d7e0c089c0. This vulnerability is also known as the "Zerologon" vulnerability. The exploit...

Zerologon is now detected by Microsoft Defender for Identity

There has been a huge focus on the recently patched CVE-2020-1472 Netlogon Elevation of Privilege vulnerability, widely known as ZeroLogon. While Microsoft strongly recommends that you deploy the latest security updates to your servers and devices, we also want to provide you with the best...

Zerologon is now detected by Microsoft Defender for Identity

There has been a huge focus on the recently patched CVE-2020-1472 Netlogon Elevation of Privilege vulnerability, widely known as ZeroLogon. While Microsoft strongly recommends that you deploy the latest security updates to your servers and devices, we also want to provide you with the best...

3 Ways to Hunt for the ZeroLogon Vulnerability on Your Windows Servers

Vulnerability assessment and patch management can be painful time-consuming processes. From the Security team looking at vulnerability reports and prioritizing the riskiest ones for their environment to the IT or Infrastructure team determining exactly which machines need to be patched and...

Debian DLA-2463-1 : samba security update

Multiple vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix. CVE-2020-1472 Unauthenticated domain controller compromise by subverting Netlogon cryptography. This vulnerability includes both ZeroLogon and non-ZeroLogon variations. CVE-2020-10704 An...

Symantec Reports on Cicada APT Attacks against Japan

Symantec is reporting on an APT group linked to China, named Cicada. They have been attacking organizations in Japan and elsewhere. Cicada has historically been known to target Japan-linked organizations, and has also targeted MSPs in the past. The group is using living-off-the-land tools as well...

APT Exploits Microsoft Zerologon Bug: Targets Japanese Companies

China-backed APT Cicada joins the list of threat actors leveraging the Microsoft Zerologon bug to stage attacks against their targets. In this case, victims are large and well-known Japanese organizations and their subsidiaries, including locations in the United States. Researchers observed a...

ZeroLogon - Netlogon Elevation of Privilege Exploit

Exploit Title: ZeroLogon - Netlogon Elevation of Privilege Date: 2020-10-04 Exploit Author: West Shepherd Vendor Homepage: https://www.microsoft.com Version: Microsoft Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2 Tested on: Microsof...

ZeroLogon - Netlogon Elevation of Privilege

Exploit Title: ZeroLogon - Netlogon Elevation of Privilege Date: 2020-10-04 Exploit Author: West Shepherd Vendor Homepage: https://www.microsoft.com Version: Microsoft Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2 Tested on: Microsof...

Querying Windows Event Logs for Faster Investigation and Response

With this week’s release on the VMware Carbon Black Cloud, users can now remotely inspect Windows devices’ event logs to pull back information that could be helpful during an investigation or response scenario. This new capability comes as part of an update to the Live Query functionality provide...

Microsoft Teams Users Under Attack in 'FakeUpdates' Malware Campaign

Attackers are using ads for fake Microsoft Teams updates to deploy backdoors, which use Cobalt Strike to infect companies’ networks with malware. Microsoft is warning its customers about the so-called “FakeUpdates” campaigns in a non-public security advisory, according to a report in Bleeping...

A week in security (October 26 – November 1)

We had a very busy week at Malwarebytes Labs. We offered advice on Googles patch for an actively exploited zero-day bug that affects Chrome users, our podcast talked about finding consumer value in Cybersecurity Awareness Month with Jamie Court, we provided guidance about keeping ransomware cash...

TAU Threat Advisory: Imminent Ransomware threat to U.S. Healthcare and Public Health Sector

The Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency CISA issued a joint alert this week with regards to an imminent cybercrime threat to US hospitals and healthcare providers. The alert was coauthored by CISA, the Federal Bureau of Investigation FBI, and the...

Halloween News Wrap: Zombie Bugs, Hospital Deaths and Other Scary Cyberattack Stories

This Halloween week, Threatpost editors discuss the spookiest security stories, including: A wave of ransomware attacks targeting a number of hospitals, sparking worries about healthcare security and the impact on patients during COVID-19 “Zombie” vulnerabilities – including Zerologon and SMBGhos...