Progress Software disclosed one more critical vulnerability CVE-2023-35708 with CVSS Base Score 9.8 in its MOVEit Transfer application on 15th June 2023. An unauthenticated remote attacker could exploit the vulnerable version of MOVEit Transfer that could lead to escalated privileges and potential unauthorized access in the environment.…
JPCERT/CC has confirmed attacks that infected routers in Japan with malware around February 2023. This blog article explains the details of the attack confirmed by JPCERT/CC and GobRAT malware, which was used in the attack.
Attack flow up to malware executionInitially, the attacker targets a router whose WEBUI is open to the public, executes scripts possibly by using vulnerabilities, and finally infects the GobRAT.…
Qakbot (aka Pinkslipbot, Qbot) has persisted as a banking trojan – then a potent malware/ransomware distribution network – for well over a decade, its origins going back as far as 2007. As a ransomware botnet, Qakbot is usually spread through email hijacking and social engineering, dropping malicious files that infect Windows hosts.…
Splunk is committed to using inclusive and unbiased language. This blog post might contain terminology that we no longer use. For more information on our updated terminology and our stance on biased language, please visit our blog post. We appreciate your understanding as we work towards making our community more inclusive for everyone.…
UPDATED: 1 June 2023 @ 1733 ET – Added shareable Huntress YARA rule for assistance in detection effortUPDATED: 1 June 2023 @ 2023 ET – Added Kostas community Sigma rule to assist in detection effortsUPDATED: 1 June 2023 @ 2029 ET – Added screenshots for the DLL that creates the human2.aspx…
EclecticIQ researchers identified a malicious web server very likely operated by a Chinese threat actor used to target Taiwanese government entities, including critical infrastructure.
The command-and-control infrastructure was publicly exposed to the internet. Based on log and meta data found on the server, EclecticIQ analysts assess with high confidence the threat actor performed offensive cyber operations, including reconnaissance, malware delivery, and post-exploitation against selected targets.…
Apache NiFi describes itself as “an easy-to-use, powerful, and reliable system to process and distribute data.” [1] In simple terms, NiFi implements a web-based interface to define how data is moved from a source to a destination. Users may define various “processors” to manipulate data along the way.…
On May 11 2023, Essential Addons for Elementor, a WordPress plugin with over one million active installations, released a patch for a critical vulnerability that made it possible for any unauthenticated user to reset arbitrary user passwords, including user accounts with administrative-level access. This vulnerability was discovered and responsibly disclosed by security researcher Rafie Muhammed.…
Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware.…
By Securonix Threat Labs, Threat Research: D. Iuzvyk, T. Peck, O. Kolesnikov
TL;DRAn unusual attack/phishing campaign delivering malware while using meme-filled code and complex obfuscation methods continues dropping Xworm payloads for the last few months and is still ongoing today.
IntroFor the last few months, an interesting and ongoing attack campaign was identified and tracked by the Securonix Threat Research team.…
BPFdoor is a Linux-specific, low-profile, passive backdoor intended to maintain a persistent, long-term foothold in already-breached networks and environments and functions primarily to ensure an attacker can re-enter an infected system over an extended period of time, post-compromise.
The malware gets its name from its usage of a Berkley Packet Filter – a fairly unique way of receiving its instructions and evading detection, which bypasses firewall restrictions on incoming traffic.…
This post is also available in: 日本語 (Japanese)
Executive SummaryRoyal ransomware has been involved in high-profile attacks against critical infrastructure, especially healthcare, since it was first observed in September 2022. Bucking the popular trend of hiring affiliates to promote their threat as a service, Royal ransomware operates as a private group made up of former members of Conti.…
In recent years, ransomware operations have emerged as highly profitable cybercrime schemes. Numerous companies have suffered immense financial, data, and reputation losses due to such attacks. Typically, cybersecurity researchers tend to concentrate on prominent ransomware groups that run extensive Ransomware-as-a-Service (RaaS) operations.…
This post is also available in: 日本語 (Japanese)
Executive SummaryConfiguration data that changes across each instance of deployed malware can be a gold mine of information about what the bad guys are up to. The problem is that configuration data in malware is usually difficult to parse statically from the file, by design.…
This post is also available in: 日本語 (Japanese)
Executive SummaryFrom July-December 2022, Unit 42 researchers have observed and analyzed over 67 million unique malicious URLs, domains and IPs, which we use to block associated malicious network traffic. We will cover the trends we have observed during the second half of 2022 based on our detections of malicious URLs, domains and IPs.…
In March and April 2023, we observed a type of ransomware targeting its victims via a minimalistic approach with tools that leave only a minimal footprint behind. Our findings revealed many of the preparations made by the perpetrators and how quickly they managed to carry out the ransomware attack.…
On 19th April 2023, PaperCut released a Security alert stating, “We have evidence to suggest that unpatched servers are being exploited in the wild”. The advisory released by vendors provides insights into the two CVEs – CVE-2023-27350 (Severity: Critical) & CVE-2023-27351(Severity: High).…
This post is also available in: 日本語 (Japanese)
Executive SummaryUnit 42 researchers recently identified a new variant of PingPull malware used by Alloy Taurus actors designed to target Linux systems. While following the infrastructure leveraged by the actor for this PingPull variant, we also identified their use of another backdoor we track as Sword2033.…