Tag Linux

Cyclops Ransomware Group Unveils Go-Based Info Stealer for Cybercriminals

Threat actors associated with the Cyclops ransomware have been identified promoting malware designed to steal sensitive information from compromised systems. According to a recent report by Uptycs, the group markets its offerings on forums, seeking a share of profits from those using its tools for malicious activities. Cyclops ransomware is particularly notable for its ability to target major desktop operating systems, including Windows, macOS, and Linux, while also terminating any processes that might hinder encryption. The macOS and Linux versions are developed in Golang, utilizing a sophisticated encryption method that combines both asymmetric and symmetric techniques. The Go-based info stealer targets Windows and Linux systems, gathering critical data such as operating system details, computer name, and other specifications.

Cyclops Ransomware Group Introduces Go-Based Info Stealer for Cybercriminals June 6, 2023 In recent developments within the cybercrime ecosystem, the Cyclops ransomware group has begun marketing a new variant of information-stealing malware, specifically designed to harvest sensitive data from compromised systems. According to a report from Uptycs, this threat actor…

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Cyclops Ransomware Group Unveils Go-Based Info Stealer for Cybercriminals

Threat actors associated with the Cyclops ransomware have been identified promoting malware designed to steal sensitive information from compromised systems. According to a recent report by Uptycs, the group markets its offerings on forums, seeking a share of profits from those using its tools for malicious activities. Cyclops ransomware is particularly notable for its ability to target major desktop operating systems, including Windows, macOS, and Linux, while also terminating any processes that might hinder encryption. The macOS and Linux versions are developed in Golang, utilizing a sophisticated encryption method that combines both asymmetric and symmetric techniques. The Go-based info stealer targets Windows and Linux systems, gathering critical data such as operating system details, computer name, and other specifications.

CISA Alerts on Ongoing Exploitation of Linux Kernel Privilege Escalation Flaw Jun 18, 2025 Linux / Vulnerability The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has identified a security vulnerability affecting the Linux kernel, adding it to its Known Exploited Vulnerabilities (KEV) catalog due to its active exploitation in the wild. This vulnerability, designated CVE-2023-0386 (CVSS score: 7.8), involves improper ownership management that could allow attackers to escalate privileges on vulnerable systems. A patch was released in early 2023. CISA explained that the flaw arises from unauthorized access to the execution of setuid files with capabilities within the Linux kernel’s OverlayFS subsystem, specifically when users copy capable files from a nosuid mount to another mount. This UID mapping issue enables local users to elevate their privileges on the system. The specific methods of exploitation in current scenarios remain unclear. A report from Datadog in May 2023 highlighted this vulnerability…

CISA Alerts About Ongoing Exploitation of Linux Kernel Privilege Escalation Flaw On June 18, 2025, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued a warning regarding a significant security vulnerability affecting the Linux kernel, now listed in its Known Exploited Vulnerabilities (KEV) catalog. This flaw, identified as CVE-2023-0386, boasts…

Read MoreCISA Alerts on Ongoing Exploitation of Linux Kernel Privilege Escalation Flaw Jun 18, 2025 Linux / Vulnerability The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has identified a security vulnerability affecting the Linux kernel, adding it to its Known Exploited Vulnerabilities (KEV) catalog due to its active exploitation in the wild. This vulnerability, designated CVE-2023-0386 (CVSS score: 7.8), involves improper ownership management that could allow attackers to escalate privileges on vulnerable systems. A patch was released in early 2023. CISA explained that the flaw arises from unauthorized access to the execution of setuid files with capabilities within the Linux kernel’s OverlayFS subsystem, specifically when users copy capable files from a nosuid mount to another mount. This UID mapping issue enables local users to elevate their privileges on the system. The specific methods of exploitation in current scenarios remain unclear. A report from Datadog in May 2023 highlighted this vulnerability…

Severe Sudo Vulnerabilities Allow Local Users to Escalate to Root Access on Major Linux Distributions

July 4, 2025
By Cybersecurity Insights

Cybersecurity researchers have identified two critical vulnerabilities in the Sudo command-line utility for Linux and Unix-like systems, enabling local attackers to elevate their privileges to root on affected machines. Here’s a summary of the vulnerabilities:

  • CVE-2025-32462 (CVSS Score: 2.8): In versions prior to 1.9.17p1, Sudo, when configured with a sudoers file specifying a host that is neither the current host nor ALL, permits listed users to execute commands on unintended machines.

  • CVE-2025-32463 (CVSS Score: 9.3): In Sudo versions before 1.9.17p1, local users can gain root access as a result of the /etc/nsswitch.conf file being utilized from a user-controlled directory in conjunction with the –chroot option.

Sudo is a command-line tool designed to allow low-privileged users to execute commands as another user, typically the superuser, thereby implementing the principle of least privilege for administrative tasks.

Critical Sudo Vulnerabilities Expose Linux Systems to Root Access Risks On July 4, 2025, cybersecurity experts identified two significant vulnerabilities in the Sudo command-line utility widely used across Linux and Unix-like operating systems. These issues pose a serious threat, allowing local attackers to gain root access on affected systems, heightening…

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Severe Sudo Vulnerabilities Allow Local Users to Escalate to Root Access on Major Linux Distributions

July 4, 2025
By Cybersecurity Insights

Cybersecurity researchers have identified two critical vulnerabilities in the Sudo command-line utility for Linux and Unix-like systems, enabling local attackers to elevate their privileges to root on affected machines. Here’s a summary of the vulnerabilities:

  • CVE-2025-32462 (CVSS Score: 2.8): In versions prior to 1.9.17p1, Sudo, when configured with a sudoers file specifying a host that is neither the current host nor ALL, permits listed users to execute commands on unintended machines.

  • CVE-2025-32463 (CVSS Score: 9.3): In Sudo versions before 1.9.17p1, local users can gain root access as a result of the /etc/nsswitch.conf file being utilized from a user-controlled directory in conjunction with the –chroot option.

Sudo is a command-line tool designed to allow low-privileged users to execute commands as another user, typically the superuser, thereby implementing the principle of least privilege for administrative tasks.

New CRON#TRAP Malware Targets Windows by Concealing Itself in a Linux VM to Bypass Antivirus Detection

Cybersecurity experts have unveiled a new malware campaign known as CRON#TRAP, which infiltrates Windows systems through a Linux virtual machine that harbors a backdoor for remote access. The campaign initiates with a malicious Windows shortcut (LNK) file, typically distributed as a ZIP archive in phishing emails. Researchers Den Iuzvyk and Tim Peck from Securonix highlighted that the Linux instance is pre-configured with a backdoor that automatically connects to an attacker-controlled command-and-control (C2) server. This enables attackers to maintain a hidden presence on the compromised system, facilitating further malicious activities within a concealed environment, thus evading detection by traditional antivirus solutions. The phishing messages often disguise themselves as an “OneAmerica survey.”

New CRON#TRAP Malware Targets Windows Systems via Linux Virtual Machine, Evading Detection November 8, 2024 Cybersecurity experts have identified a sophisticated malware campaign dubbed CRON#TRAP that infiltrates Windows systems through a concealed Linux virtual machine (VM). This innovative approach allows the malware to evade traditional antivirus defenses by operating in…

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New CRON#TRAP Malware Targets Windows by Concealing Itself in a Linux VM to Bypass Antivirus Detection

Cybersecurity experts have unveiled a new malware campaign known as CRON#TRAP, which infiltrates Windows systems through a Linux virtual machine that harbors a backdoor for remote access. The campaign initiates with a malicious Windows shortcut (LNK) file, typically distributed as a ZIP archive in phishing emails. Researchers Den Iuzvyk and Tim Peck from Securonix highlighted that the Linux instance is pre-configured with a backdoor that automatically connects to an attacker-controlled command-and-control (C2) server. This enables attackers to maintain a hidden presence on the compromised system, facilitating further malicious activities within a concealed environment, thus evading detection by traditional antivirus solutions. The phishing messages often disguise themselves as an “OneAmerica survey.”

Hackers Target SAP Vulnerability to Breach Linux Systems and Deploy Auto-Color Malware

July 30, 2025
Vulnerability / Threat Intelligence

Threat actors have been found exploiting a critical SAP NetWeaver vulnerability, now patched, to introduce the Auto-Color backdoor in an April 2025 attack on a U.S.-based chemicals firm. According to a report from Darktrace shared with The Hacker News, the attacker accessed the company’s network over three days, attempted to download suspicious files, and communicated with infrastructure associated with the Auto-Color malware. The vulnerability, identified as CVE-2025-31324, is a severe unauthenticated file upload flaw in SAP NetWeaver that allows remote code execution (RCE) and was fixed by SAP in April. Auto-Color, first reported by Palo Alto Networks Unit 42 in February, operates similarly to a remote access trojan, providing remote access to compromised Linux systems. It has been linked to attacks against universities and government entities in North America and Asia between November and December 2024.

Hackers Exploit SAP Vulnerability to Target U.S. Chemical Company with Auto-Color Malware On July 30, 2025, cybersecurity experts reported a significant breach involving a critical vulnerability in SAP NetWeaver, previously patched by SAP. In an incident that unfolded over three days in April 2025, threat actors targeted a U.S.-based chemicals…

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Hackers Target SAP Vulnerability to Breach Linux Systems and Deploy Auto-Color Malware

July 30, 2025
Vulnerability / Threat Intelligence

Threat actors have been found exploiting a critical SAP NetWeaver vulnerability, now patched, to introduce the Auto-Color backdoor in an April 2025 attack on a U.S.-based chemicals firm. According to a report from Darktrace shared with The Hacker News, the attacker accessed the company’s network over three days, attempted to download suspicious files, and communicated with infrastructure associated with the Auto-Color malware. The vulnerability, identified as CVE-2025-31324, is a severe unauthenticated file upload flaw in SAP NetWeaver that allows remote code execution (RCE) and was fixed by SAP in April. Auto-Color, first reported by Palo Alto Networks Unit 42 in February, operates similarly to a remote access trojan, providing remote access to compromised Linux systems. It has been linked to attacks against universities and government entities in North America and Asia between November and December 2024.

SAP NetWeaver Vulnerability Exploited in Auto-Color Malware Assault on US Company

Darktrace, a prominent cybersecurity research organization, has reported what appears to be the first recorded instance of threat actors leveraging a severe vulnerability in SAP NetWeaver (CVE-2025-31324) to deploy a stealthy malware known as Auto-Color. This vulnerability, uncovered by SAP SE on April 24, 2025, carries a critical CVSS score…

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Feds Alert Health and Other Industries About Interlock Risks

Fraud Management & Cybercrime , Healthcare , Industry Specific Healthcare Sector Targeted by Ransomware Group Interlock, Emerging Since 2024 Marianne Kolbasuk McGee (HealthInfoSec) • July 23, 2025 Image: Interlock U.S. officials have raised concerns about the ransomware group Interlock, which has recently targeted a variety of sectors, notably healthcare, using…

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FBI and CISA Alert: Interlock Ransomware Threatens Critical Infrastructure

The Federal Bureau of Investigation (FBI), in collaboration with the Cybersecurity and Infrastructure Security Agency (CISA), the Department of Health and Human Services (HHS), and the Multi-State Information Sharing and Analysis Center (MS-ISAC), has issued a critical alert regarding the intensified activities of the Interlock ransomware group. This group is…

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New Expert Insights Uncover Greater Issues Following Qantas Cyber Attack

The recent cyber attack on Qantas has sent shockwaves through the security community, highlighting the evolving methods employed by decentralized global hacking groups. Expert analysis has shed light on the agile and organized tactics that characterize these groups, prompting deeper scrutiny into the vulnerabilities that major corporations and their third-party…

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