Tag Archives: don’t miss

Are your MS SQL servers part of a cryptomining botnet? Check now!

For the last two years or so, attackers have been infecting and reinfecting poorly secured MS SQL servers, booting other criminals’ malware from them and exploiting their compute power to mine Vollar and Monero cryptocurrency. 61.5 percent of the infected machines get cleaned up by administrators and IT security teams within two days, and the rest between three to 14 days but, according to Guardicore Labs researchers, 10 percent of the victims end up reinfected, … More ? The post Are your MS SQL servers part of a cryptomining botnet? Check now! appeared first on Help Net Security .

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Are your MS SQL servers part of a cryptomining botnet? Check now!

Hackers are getting hacked via trojanized hacking tools

Someone has been trojanizing a wide variety of hacking tools to compromise the machines of hackers who want to use the tools for free, Cybereason researcher Amit Serper has revealed. “We have found a widespread hacking campaign that uses the njRat trojan to hijack the victim’s machine, giving the threat actors complete access that can be used for anything from conducting DDoS attacks to stealing sensitive data,” he shared. About the trojanized hacking tools The … More ? The post Hackers are getting hacked via trojanized hacking tools appeared first on Help Net Security .

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Hackers are getting hacked via trojanized hacking tools

12,000+ Jenkins servers can be exploited to launch, amplify DDoS attacks

A vulnerability (CVE-2020-2100) in 12,000+ internet-facing Jenkins servers can be abused to mount and amplify reflective DDoS attacks against internet hosts, Radware researchers have discovered. The vulnerability can also be triggered by a single, spoofed UDP packet to launch DoS attacks against those same vulnerable Jenkins servers, by forcing them into an infinite loop of replies that can’t be stopped unless one of the servers is rebooted or has its Jenkins service restarted. About the … More ? The post 12,000+ Jenkins servers can be exploited to launch, amplify DDoS attacks appeared first on Help Net Security .

The frequency of DDoS attacks depends on the day and time

Multivector and cloud computing attacks have been rising over the last twelve months, according to Link11. The share of multivector attacks – which target and misuse several protocols – grew significantly from 46% in the first quarter to 65% in the fourth quarter. DNS amplification most popular for DDoS attackers DNS amplification was the most used technique for DDoS attackers in 2019 having been found in one-third of all attacks. The attackers exploited insecure DNS … More ? The post The frequency of DDoS attacks depends on the day and time appeared first on Help Net Security .

The nastiest ransomware, phishing and botnets of 2019

Webroot released its annual Nastiest Malware list, shedding light on 2019’s worst cybersecurity threats. From ransomware strains and cryptomining campaigns that delivered the most attack payloads to phishing attacks that wreaked the most havoc, it’s clear that cyber threats across the board are becoming more advanced and difficult to detect. Ransomware Ransomware continued to see success by evolving a more targeted model initially adopted in previous years. SMBs remain a prime target as they struggle … More ? The post The nastiest ransomware, phishing and botnets of 2019 appeared first on Help Net Security .

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The nastiest ransomware, phishing and botnets of 2019

Cisco closes high-impact vulnerabilities in its security offerings

Cisco has fixed 18 high-impact vulnerabilities affecting several of its security offerings and is advising administrators to test and implement the offered security updates as soon as possible. “Successful exploitation of the vulnerabilities could allow an attacker to gain unauthorized access, gain elevated privileges, execute arbitrary commands, or cause a denial of service (DoS) condition on an affected device,” the company said. About the vulnerabilities The vulnerabilities affect Cisco ASA (Adaptive Security Appliance) Software, Cisco … More ? The post Cisco closes high-impact vulnerabilities in its security offerings appeared first on Help Net Security .

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Cisco closes high-impact vulnerabilities in its security offerings

Guess what? You should patch Exim again!

Hot on the heels of a patch for a critical RCE Exim flaw comes another one that fixes a denial of service (DoS) condition (CVE-2019-16928) that could also be exploited by attackers to pull off remote code execution. With no mitigations available at this time, Exim maintainers urge admins to upgrade to version 4.92.3, which has been released on Sunday. About Exim and the flaw (CVE-2019-16928) According to E-Soft, Exim is the most widely used … More ? The post Guess what? You should patch Exim again! appeared first on Help Net Security .

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Guess what? You should patch Exim again!

The changing face of DDoS attacks: Degraded performance instead of total takedown

The number of DDoS attacks might be getting higher, but they are not all massive nor do they always trigger DDoS defenses. In fact, small-scale DDoS attacks are becoming more frequent and sophisticated, according to new research from Neustar’s SOC. According to the company’s Q2 2019 Cyber Threats and Trends report, between April and June of this year, over 75 percent of all attacks mitigated by Neustar were 5 Gbps or less, while large attacks … More ? The post The changing face of DDoS attacks: Degraded performance instead of total takedown appeared first on Help Net Security .

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The changing face of DDoS attacks: Degraded performance instead of total takedown

Countering industrial cyberthreats with secure, standards-based, licensed wireless networks

Over the past few years, cyber threats aimed at a number of critical infrastructure targets have drawn our attention to the security of mission critical networks. These threats have included power grids in Ukraine and Ireland, U.S. energy companies and nuclear power plants, and most recently, at an electric utility on the West Coast where a distributed denial-of-service (DDoS) attack overwhelmed grid network systems with false Web traffic. This was the first documented digital attack … More ? The post Countering industrial cyberthreats with secure, standards-based, licensed wireless networks appeared first on Help Net Security .

Global communications service providers struggling to fend off growing number of DDoS attacks

Global communications service providers, whose businesses are predicated on continuous availability and reliable service levels, are struggling to fend off a growing number of DDoS attacks against their networks. A lack of timely and actionable intelligence is seen as a major obstacle to DDoS protection, according to A10 Networks. The critical need for DDoS protection The A10 Networks study conducted by the Ponemon Institute highlights the critical need for DDoS protection that provides higher levels … More ? The post Global communications service providers struggling to fend off growing number of DDoS attacks appeared first on Help Net Security .

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Global communications service providers struggling to fend off growing number of DDoS attacks