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HeadCrab 2.0 Goes Fileless, Targeting Redis Servers for Crypto Mining

HeadCrab 2.0 Goes Fileless, Targeting Redis Servers for Crypto Mining

Feb 01, 2024 Cryptocurrency / Botnet
Cybersecurity researchers have detailed an updated version of the malware  HeadCrab  that's known to target Redis database servers across the world since early September 2021. The development, which comes exactly a year after the malware was first  publicly disclosed  by Aqua, is a sign that the financially-motivated threat actor behind the campaign is actively adapting and refining their tactics and techniques to stay ahead of the detection curve. The cloud security firm  said  that "the campaign has almost doubled the number of infected Redis servers," with an additional 1,100 compromised servers, up from 1,200 reported at the start of 2023. HeadCrab is designed to infiltrate internet-exposed Redis servers and wrangle them into a botnet for illicitly mining cryptocurrency, while also leveraging the access in a manner that allows the threat actor to execute shell commands, load fileless kernel modules, and exfiltrate data to a remote server. While the origins of th
From Megabits to Terabits: Gcore Radar Warns of a New Era of DDoS Attacks

From Megabits to Terabits: Gcore Radar Warns of a New Era of DDoS Attacks

Jan 23, 2024 Cybersecurity / Server Security
As we enter 2024, Gcore has released its latest Gcore Radar report, a twice-annual publication in which the company releases internal analytics to track DDoS attacks. Gcore's broad, internationally distributed network of scrubbing centers allows them to follow attack trends over time. Read on to learn about DDoS attack trends for Q3–Q4 of 2023, and what they mean for developing a robust protection strategy in 2024. Gcore's Key Findings DDoS attack trends for the second half of 2023 reveal alarming developments in the scale and sophistication of cyberthreats. Unprecedented Attack Power The past three years have brought about a >100% annual increase in DDoS peak (registered maximum) attack volume: In 2021, the peak capacity of DDoS attacks was  300 Gbps In 2022, it increased to  650 Gbps In Q1–Q2 of 2023, it increased again to  800 Gbps In Q3–Q4 of 2023, it surged to  1600 Gbps  (1.6 Tbps) Notably, the jump in H2 of 2023 means the cybersecurity industry is measuring DDoS a
Cybersecurity Tactics FinServ Institutions Can Bank On in 2024

Cybersecurity Tactics FinServ Institutions Can Bank On in 2024

Feb 14, 2024Financial Security / Cyber Threats
The landscape of cybersecurity in financial services is undergoing a rapid transformation. Cybercriminals are exploiting advanced technologies and methodologies, making traditional security measures obsolete. The challenges are compounded for community banks that must safeguard sensitive financial data against the same level of sophisticated threats as larger institutions, but often with more limited resources. The FinServ Threat Landscape Recent trends show an alarming increase in sophisticated cyber-attacks. Cybercriminals now deploy advanced techniques like deep fake technology and AI-powered attacks, making it increasingly difficult for banks to differentiate between legitimate and malicious activities. These developments necessitate a shift towards more sophisticated and adaptive cybersecurity measures. Take these industry statistics, for example. Financial firms report 703 cyberattack attempts per week.1 On average, 270 attacks (entailing unauthorized access of data, appl
Experts Uncover Passive Method to Extract Private RSA Keys from SSH Connections

Experts Uncover Passive Method to Extract Private RSA Keys from SSH Connections

Nov 27, 2023 Server Security / Encryption
A new study has demonstrated that it's possible for passive network attackers to obtain private RSA host keys from a vulnerable SSH server by observing when naturally occurring computational faults that occur while the connection is being established. The Secure Shell (SSH) protocol is a method for securely transmitting commands and logging in to a computer over an unsecured network. Based on a client-server architecture, SSH uses cryptography to authenticate and encrypt connections between devices. A host key is a cryptographic key used for authenticating computers in the SSH protocol. Host keys are key pairs that are typically generated using public-key cryptosystems like RSA . "If a signing implementation using CRT-RSA has a fault during signature computation, an attacker who observes this signature may be able to compute the signer's private key," a group of academics from the University of California, San Diego, and Massachusetts Institute of Technology said
cyber security

The Critical State of AI in the Cloud

websiteWiz.ioArtificial Intelligence / Cloud Security
Wiz Research reveals the explosive growth of AI adoption and what 150,000+ cloud accounts revealed about the AI surge.
The Rise of S3 Ransomware: How to Identify and Combat It

The Rise of S3 Ransomware: How to Identify and Combat It

Oct 25, 2023 Ransomware/ Malware Threat
In today's digital landscape, around  60%  of corporate data now resides in the cloud, with Amazon S3 standing as the backbone of data storage for many major corporations.  Despite S3 being a secure service from a reputable provider, its pivotal role in handling vast amounts of sensitive data (customer personal information, financial data, intellectual property, etc.), provides a juicy target for threat actors. It remains susceptible to ransomware attacks which are often initiated using leaked access keys that have accidentally been exposed by human error and have access to the organization's buckets. To effectively combat these evolving threats, it is vital to ensure that your organization has visibility into your S3 environment, that you are aware of how threat actors can compromise data for ransom and most importantly, best practices for minimizing the risk of cyber criminals successfully executing such an attack. Ensuring Visibility: CloudTrail and Server Access Logs V
HTTP/2 Rapid Reset Zero-Day Vulnerability Exploited to Launch Record DDoS Attacks

HTTP/2 Rapid Reset Zero-Day Vulnerability Exploited to Launch Record DDoS Attacks

Oct 10, 2023 Server Security / Vulnerability
Amazon Web Services (AWS), Cloudflare, and Google on Tuesday said they took steps to mitigate record-breaking distributed denial-of-service (DDoS) attacks that relied on a novel technique called HTTP/2 Rapid Reset. The  layer 7 attacks  were detected in late August 2023, the companies said in a coordinated disclosure. The cumulative susceptibility to this attack is being tracked as  CVE-2023-44487 , and carries a CVSS score of 7.5 out of a maximum of 10. While the attacks aimed at Google's cloud infrastructure peaked at  398 million requests per second  (RPS), the ones that struck AWS and Cloudflare exceeded a volume of 155 million and 201 million RPS, respectively. HTTP/2 Rapid Reset refers to a zero-day flaw in the HTTP/2 protocol that can be exploited to carry out DDoS attacks. A significant feature of HTTP/2 is multiplexing requests over a single TCP connection, which manifests in the form of concurrent streams. What's more, a client that wants to abort a request can
Atlassian Confluence Hit by New Actively Exploited Zero-Day – Patch Now

Atlassian Confluence Hit by New Actively Exploited Zero-Day – Patch Now

Oct 05, 2023 Zero Day / Vulnerability
Atlassian has released fixes to contain an actively exploited critical zero-day flaw impacting publicly accessible Confluence Data Center and Server instances. The vulnerability, tracked as  CVE-2023-22515 , is remotely exploitable and allows external attackers to create unauthorized Confluence administrator accounts and access Confluence servers. It does not impact Confluence versions prior to 8.0.0. Confluence sites accessed via an atlassian.net domain are also not vulnerable to this issue. The enterprise software services provider  said  it was made aware of the issue by "a handful of customers." It has been addressed in the following versions of Confluence Data Center and Server - 8.3.3 or later 8.4.3 or later, and 8.5.2 (Long Term Support release) or later The company, however, did not disclose any further specifics about the nature and scale of the exploitation, or the root cause of the vulnerability. Customers who are unable to apply the updates are advised
Protecting your IT infrastructure with Security Configuration Assessment (SCA)

Protecting your IT infrastructure with Security Configuration Assessment (SCA)

Oct 03, 2023 Network Security / XDR / SIEM
Security Configuration Assessment (SCA)  is critical to an organization's cybersecurity strategy. SCA aims to discover vulnerabilities and misconfigurations that malicious actors exploit to gain unauthorized access to systems and data. Regular  security configuration assessments  are essential in maintaining a secure and compliant environment, as this minimizes the risk of cyber attacks. The assessment provides insight into your current security posture by performing configuration baseline checks on services and applications running on critical systems. How SCA works  SCA is performed by checking the configurations of your IT assets against known benchmarks such as the Center for Internet Security (CIS) benchmark and compliance standards such as NIST, GDPR, and HIPPA. Regulatory standards provide a global benchmark for best practices to help organizations enhance their IT hygiene and improve customer trust. The CIS benchmark provides a guideline for best practices for security c
Progress Software Releases Urgent Hotfixes for Multiple Security Flaws in WS_FTP Server

Progress Software Releases Urgent Hotfixes for Multiple Security Flaws in WS_FTP Server

Sep 29, 2023 Server Security / Vulnerability
Progress Software has released hotfixes for a critical security vulnerability, alongside seven other flaws, in the WS_FTP Server Ad hoc Transfer Module and in the WS_FTP Server manager interface. Tracked as  CVE-2023-40044 , the flaw has a CVSS score of 10.0, indicating maximum severity. All versions of the software are impacted by the flaw. "In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a pre-authenticated attacker could leverage a .NET deserialization vulnerability in the Ad Hoc Transfer module to execute remote commands on the underlying WS_FTP Server operating system," the company  said  in an advisory. Assetnote security researchers Shubham Shah and Sean Yeoh have been credited with discovering and reporting the vulnerability. The list of remaining flaws, impacting WS_FTP Server versions prior to 8.8.2, is as follows - CVE-2023-42657  (CVSS score: 9.9) - A directory traversal vulnerability that could be exploited to perform file operations. CVE-2023-40045
Threat Report: High Tech Industry targeted the most with 46% of attack traffic tagged by NLX

Threat Report: High Tech Industry targeted the most with 46% of attack traffic tagged by NLX

Sep 26, 2023 Cyber Threat / DDoS Protection
How To Use This Report Enhance situational awareness of techniques used by threat actors Identify potential attacks targeting your industry Gain insights to help improve and accelerate your organization's threat response Summary of Findings The Network Effect Threat Report offers insights based on unique data from  Fastly's Next-Gen WAF  from Q2 2023 (April 1, 2023 to June 30, 2023). This report looks at traffic originating from IP addresses tagged by Fastly's Network Learning Exchange (NLX), our collective threat intelligence feed that anonymously shares attack source IP addresses across all Next-Gen WAF customer networks. Before diving deeper into the attack observations, here are five key takeaways that we found most significant in our research, covering global traffic across multiple industries, including High Tech, Financial Services, Commerce, Education, and Media and entertainment. Multi-customer attacks: 69% of IPs tagged by NLX targeted multiple customers, and 6
Hackers Exploit MinIO Storage System Vulnerabilities to Compromise Servers

Hackers Exploit MinIO Storage System Vulnerabilities to Compromise Servers

Sep 04, 2023 Vulnerability / Server Security
An unknown threat actor has been observed weaponizing high-severity security flaws in the MinIO high-performance object storage system to achieve unauthorized code execution on affected servers. Cybersecurity and incident response firm Security Joes said the intrusion leveraged a publicly available exploit chain to backdoor the MinIO instance. The comprises  CVE-2023-28432  (CVSS score: 7.5) and  CVE-2023-28434  (CVSS score: 8.8), the former of which was  added  to the U.S. Cybersecurity and Infrastructure Security Agency's (CISA) Known Exploited Vulnerabilities (KEV) catalog on April 21, 2023. The two vulnerabilities "possess the potential to expose sensitive information present within the compromised installation and facilitate remote code execution (RCE) on the host where the MinIO application is operational," Security Joes  said  in a report shared with The Hacker News. In the attack chain investigated by the company, the flaws are said to have been weaponized b
Multiple Flaws in CyberPower and Dataprobe Products Put Data Centers at Risk

Multiple Flaws in CyberPower and Dataprobe Products Put Data Centers at Risk

Aug 12, 2023 Server Security / Cyber Threat
Multiple security vulnerabilities impacting CyberPower's PowerPanel Enterprise Data Center Infrastructure Management (DCIM) platform and Dataprobe's iBoot Power Distribution Unit (PDU) could be potentially exploited to gain unauthenticated access to these systems and inflict catastrophic damage in target environments. The nine vulnerabilities, from CVE-2023-3259 through CVE-2023-3267, carry severity scores ranging from 6.7 to 9.8, enabling threat actors to shut down entire data centers and compromise data center deployments to steal data or launch massive attacks at a massive scale. "An attacker could chain these vulnerabilities together to gain full access to these systems," Trellix security researchers Sam Quinn, Jesse Chick, and Philippe Laulheret  said  in a report shared with The Hacker News. "Furthermore, both products are vulnerable to remote code injection that could be leveraged to create a backdoor or an entry point to the broader network of connect
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