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Category — SambaCry
CowerSnail — Windows Backdoor from the Creators of SambaCry Linux Malware

CowerSnail — Windows Backdoor from the Creators of SambaCry Linux Malware

Jul 27, 2017
Last month, we reported about a group of hackers exploiting SambaCry —a 7-year-old critical remote code execution vulnerability in Samba networking software—to hack Linux computers and install malware to mine cryptocurrencies. The same group of hackers is now targeting Windows machines with a new backdoor, which is a QT-based re-compiled version of the same malware used to target Linux. Dubbed CowerSnail , detected by security researchers at Kaspersky Labs as Backdoor.Win32.CowerSnail, is a fully-featured windows backdoor that allows its creators to remotely execute any commands on the infected systems. Wondering how these two separate campaigns are connected? Interestingly, the CowerSnail backdoor uses the same command and control (C&C) server as the malware that was used to infect Linux machines to mine cryptocurrency last month by exploiting the then-recently exposed SambaCry vulnerability. Common C&C Server Location — cl.ezreal.space:20480 SambaCry vulnerabi...
New Linux Malware Exploits SambaCry Flaw to Silently Backdoor NAS Devices

New Linux Malware Exploits SambaCry Flaw to Silently Backdoor NAS Devices

Jul 19, 2017
Remember SambaCry ? Almost two months ago, we reported about a 7-year-old critical remote code execution vulnerability in Samba networking software, allowing a hacker to remotely take full control of a vulnerable Linux and Unix machines. We dubbed the vulnerability as SambaCry, because of its similarities to the Windows SMB vulnerability exploited by the WannaCry ransomware that wreaked havoc across the world over two months ago. Despite being patched in late May, the vulnerability is currently being leveraged by a new piece of malware to target the Internet of Things (IoT) devices, particularly Network Attached Storage (NAS) appliances, researchers at Trend Micro warned . For those unfamiliar: Samba is open-source software (re-implementation of SMB/CIFS networking protocol), which offers Linux/Unix servers with Windows-based file and print services and runs on the majority of operating systems, including Linux, UNIX, IBM System 390, and OpenVMS. Shortly after the publi...
Warning! Hackers Started Using "SambaCry Flaw" to Hack Linux Systems

Warning! Hackers Started Using "SambaCry Flaw" to Hack Linux Systems

Jun 10, 2017
Remember SambaCry ? Two weeks ago we reported about a 7-year-old critical remote code execution vulnerability in Samba networking software (re-implementation of SMB networking protocol) that allows a remote hacker to take full control of a vulnerable Linux and Unix machines. To know more about the SambaCry vulnerability (CVE-2017-7494) and how it works, you can read our previous article . At that time, nearly 485,000 Samba-enabled computers were found to be exposed on the Internet, and researchers predicted that the SambaCry-based attacks also have potential to spread just like WannaCry ransomware widely. The prediction came out to be quite accurate, as honeypots set up by the team of researchers from Kaspersky Lab have captured a malware campaign that is exploiting SambaCry vulnerability to infect Linux computers with cryptocurrency mining software. Another security researcher, Omri Ben Bassat‏, independently discovered  the same campaign and named it "EternalMiner...
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Between Buzz and Reality: The CTEM Conversation We All Need

Between Buzz and Reality: The CTEM Conversation We All Need

Jun 24, 2025Threat Exposure Management
I had the honor of hosting the first episode of the Xposure Podcast live from Xposure Summit 2025. And I couldn't have asked for a better kickoff panel: three cybersecurity leaders who don't just talk security, they live it. Let me introduce them. Alex Delay , CISO at IDB Bank, knows what it means to defend a highly regulated environment. Ben Mead , Director of Cybersecurity at Avidity Biosciences, brings a forward-thinking security perspective that reflects the innovation behind Avidity's targeted RNA therapeutics. Last but not least, Michael Francess , Director of Cybersecurity Advanced Threat at Wyndham Hotels and Resorts, leads the charge in protecting the franchise. Each brought a unique vantage point to a common challenge: applying Continuous Threat Exposure Management (CTEM) to complex production environments. Gartner made waves in 2023 with a bold prediction: organizations that prioritize CTEM will be three times less likely to be breached by 2026. But here's the kicker -...
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