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Category — cryptojacking
New Sysrv Botnet Variant Hijacking Windows and Linux with Crypto Miners

New Sysrv Botnet Variant Hijacking Windows and Linux with Crypto Miners

May 17, 2022
Microsoft is warning of a new variant of the Sysrv botnet that's exploiting multiple security flaws in web applications and databases to install coin miners on both Windows and Linux systems. The tech giant, which has called the new version Sysrv-K , is said to weaponize an  array of exploits  to gain control of web servers. The cryptojacking botnet first emerged in December 2020. "Sysrv-K scans the internet to find web servers with various vulnerabilities to install itself," the company  said  in a series of tweets. "The vulnerabilities range from path traversal and remote file disclosure to arbitrary file download and remote code execution vulnerabilities." This also includes  CVE-2022-22947  (CVSS score: 10.0), a code injection vulnerability in Spring Cloud Gateway that could be exploited to allow arbitrary remote execution on a remote host via a maliciously crafted request. It's worth noting that the abuse of CVE-2022-22947 has prompted the U...
On-Demand Webinar: Into the Cryptoverse

On-Demand Webinar: Into the Cryptoverse

Nov 17, 2021
In the span of a few years, cryptocurrencies have gone from laughingstock and novelty to a serious financial instrument, and a major sector in high-tech. The price of Bitcoin and Ethereum has gone from single dollars to thousands, and they're increasingly in the mainstream.  This is undoubtedly a positive development, as it opens new avenues for finance, transactions, tech developments, and more. Unfortunately, no innovation is without its dark side, and the crypto industry is no exception. A new webinar from XDR provider Cynet ( you can see it here ) dives deeper into this dark corner to explore the intersection of cybersecurity and cryptocurrency.  The first question is how, exactly, cryptocurrency creates security vulnerabilities for organizations. There's no single answer, and in many cases, the results are more indirect. This bears closer inspection, and the webinar, led by Cynet  CyOps Analyst  Ronen Ahdut, studies the different ways cryptocurrencies are use...
Don't Overlook These 6 Critical Okta Security Configurations

Don't Overlook These 6 Critical Okta Security Configurations

Feb 10, 2025Identity Security / Data Protection
Given Okta's role as a critical part of identity infrastructure, strengthening Okta security is essential. This article covers six key Okta security settings that provide a strong starting point, along with recommendations for implementing continuous monitoring of your Okta security posture. With over 18,000 customers, Okta serves as the cornerstone of identity governance and security for organizations worldwide. However, this prominence has made it a prime target for cybercriminals who seek access to valuable corporate identities, applications, and sensitive data. Recently, Okta warned its customers of an increase in phishing social engineering attempts to impersonate Okta support personnel. Given Okta's role as a critical part of identity infrastructure, strengthening Okta security is essential. This article covers six key Okta security settings that provide a strong starting point, along with how continuous monitoring of your Okta security posture helps you avoid miscon...
Researchers Warn of Linux Cryptojacking Attackers Operating from Romania

Researchers Warn of Linux Cryptojacking Attackers Operating from Romania

Jul 19, 2021
A threat group likely based in Romania and active since at least 2020 has been behind an active cryptojacking campaign targeting Linux-based machines with a previously undocumented SSH brute-forcer written in Golang. Dubbed " Diicot brute ," the password cracking tool is alleged to be distributed via a software-as-a-service model, with each threat actor furnishing their own unique API keys to facilitate the intrusions, Bitdefender researchers said in a report published last week. While the goal of the campaign is to deploy Monero mining malware by remotely compromising the devices via brute-force attacks, the researchers connected the gang to at least two  DDoS  botnets, including a  Demonbot  variant called chernobyl and a Perl  IRC bot , with the XMRig mining payload hosted on a domain named mexalz[.]us since February 2021. The Romanian cybersecurity technology company said it began its investigation into the group's hostile online activities in May 2021...
cyber security

Webinar: 5 Ways New AI Agents Can Automate Identity Attacks | Register Now

websitePush SecurityAI Agents / Identity Security
Learn how CUAs like OpenAI Operator can be used by attackers to automate account takeover and exploitation.
Capital One Hacker Also Accused of Hacking 30 More Companies and CryptoJacking

Capital One Hacker Also Accused of Hacking 30 More Companies and CryptoJacking

Aug 29, 2019
Former Amazon employee Paige Thompson , who was arrested last month in relation to the Capital One data breach , has been accused of hacking not only the U.S. credit card issuer, but also more than 30 other companies. An indictment unsealed on Wednesday revealed that Thompson not just stole data from misconfigured servers hosted with a cloud-computing company, but also used the computing power of hacked servers to mine for cryptocurrency, a practice commonly known as " Cryptojacking ." Thompson, known online as "erratic," was arrested by the FBI on July 29 concerning a massive breach in Capital One Financial Corp that exposed the personal information of more than 100 million credit card applicants in the United States and 6 million in Canada. The stolen data included approximately 140,000 Social Security numbers and 80,000 bank account numbers linked to United States customers, and 1 million Social Insurance numbers belonged to Canadian citizens, along wit...
CoinHive URL Shortener Abused to Secretly Mine Cryptocurrency Using Hacked Sites

CoinHive URL Shortener Abused to Secretly Mine Cryptocurrency Using Hacked Sites

Jul 04, 2018
Security researchers have been warning about a new malicious campaign that leverages an alternative scheme to mine cryptocurrencies without directly injecting the infamous CoinHive JavaScript into thousands of hacked websites. Coinhive is a popular browser-based service that offers website owners to embed JavaScript code that utilizes their website visitors' CPUs power in order to mine the Monero cryptocurrency for monetization. However, since its inception, mid-2017, cybercriminals have been abusing the service to illegally make money by injecting their own version of CoinHive JavaScript code to a large number of hacked websites, eventually tricking their millions of visitors into unknowingly mine Monero coins. Since a lot of web application security firms and antivirus companies have now updated their products to detect unauthorized injection of CoinHive JavaScript, cybercriminals have now started abusing a different service from CoinHive to achieve the same. Hackers ...
Over 115,000 Drupal Sites Still Vulnerable to Drupalgeddon2 Exploit

Over 115,000 Drupal Sites Still Vulnerable to Drupalgeddon2 Exploit

Jun 05, 2018
Hundreds of thousands of websites running on the Drupal CMS—including those of major educational institutions and government organizations around the world—have been found vulnerable to a highly critical flaw for which security patches were released almost two months ago. Security researcher Troy Mursch scanned the whole Internet and found  over 115,000 Drupal websites are still vulnerable to the Drupalgeddon2 flaw despite repetitive warnings. Drupalgeddon2 (CVE-2018-7600) is a highly critical remote code execution vulnerability discovered late March in Drupal CMS software (versions < 7.58 / 8.x < 8.3.9 / 8.4.x < 8.4.6 / 8.5.x < 8.5.1) that could allow attackers to completely take over vulnerable websites. For those unaware, Drupalgeddon2 allows an unauthenticated, remote attacker to execute malicious code on default or standard Drupal installations under the privileges of the user. Since Drupalgeddon2 had much potential to derive attention of motivated att...
Google Bans Cryptocurrency Mining Extensions From Chrome Web Store

Google Bans Cryptocurrency Mining Extensions From Chrome Web Store

Apr 03, 2018
In an effort to prevent cryptojacking by extensions that maliciously mine digital currencies without users' awareness, Google has implemented a new Web Store policy that bans any Chrome extension submitted to the Web Store that mines cryptocurrency. Over the past few months, we have seen a sudden rise in malicious extensions that appear to offer useful functionality, while embedding hidden cryptocurrency mining scripts that run in the background without the user's knowledge. Last month, cryptocurrency miners were even found in a Russian nuclear weapons lab and on thousands of government websites . In January, cryptocurrency mining malware also infected more than half-million PCs . Until now, only those cryptocurrency mining extensions were allowed on the Chrome Web Store that are solely intended for mining, and explicitly informed users about its working and revenue model. If the company finds any mining extension developers submitted was not in compliance and secre...
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