At the end of November 2022, experts from Bitdefender Labs started to notice an increase in attacks using ProxyNotShell/OWASSRF exploits chains to target on-premises Microsoft Exchange deployments. SSRF attacks on Microsoft Exchange servers are some of the most popular and routinely exploited vulnerabilities. We decided to release a technical advisory describing these attacks, but also documenting some of the recent attacks that we’ve detected in the wild. …
Tag: EXPLOIT
The ASEC analysis team uses the ASEC automatic analysis system RAPIT to categorize and respond to known malware. This post will list weekly statistics collected from January 9th, 2023 (Monday) to January 15th, 2023 (Sunday).
For the main category, downloader ranked top with 38.4%, followed by Infostealer with 37.0%, backdoor with 18.2%, ransomware with 4.0%, CoinMiner with 1.5%.…
Adversaries’ shift toward Shell Link (LNK) files, likely sparked by Microsoft’s decision to block macros, provides the opportunity to capitalize on information that can be provided by LNK metadata.
Cisco Talos analyzed metadata in LNK files and correlated it with threat actors tactics techniques and procedures, to identify and track threat actor activity.…
Read More We discuss the Batloader malware campaigns we observed in the last quarter of 2022, including our analysis of Water Minyades-related events (This is the intrusion set we track behind the creation of Batloader).
We discuss the Batloader malware campaigns we observed in the last quarter of 2022, including our analysis of Water Minyades-related events (This is the intrusion set we track behind the creation of Batloader).…
The ASEC analysis team monitors phishing email threats with the ASEC automatic sample analysis system (RAPIT) and honeypot. This post will cover the cases of distribution of phishing emails during the week from January 1st, 2023 to January 7th, 2022 and provide statistical information on each type.…
Throughout 2022, Deep Instinct observed various combinations of polyglot files with malicious JARs.
The initial technique dates to around 2018 when it used signed MSI files to bypass Microsoft code signing verification. A year later, in 2019, Virus Total wrote about the MSI+JAR polyglot technique. Microsoft decided not to fix the issue at that time.…
Affected Platforms: FortiOSImpacted Users: Government & large organizationsImpact: Data loss and OS and file corruptionSeverity Level: High
Fortinet has published CVSS: Critical advisory FG-IR-22-398 / CVE-2022-42475 on Dec 12, 2022. The following writeup details our initial investigation into this malware and additional IoCs identified during our ongoing analysis.…
Executive Summary
Read More This paper investigates a recent QakBot phishing campaign’s ability to evade Mark-of-the-Web (MoTW) security features, allowing for escape from the designated security zone and successful installation of malicious software on victim device.. Key observations:
EclecticIQ analysts investigated QakBot phishing campaigns switching to a Zero-Day Vulnerability to evade Windows Mark of the Web (MoTW).…
Winter brings a number of holidays in a short period of time, and many organizations shut down or run a skeleton crew for a week or more at the end of the year and beginning of the new year. This makes it easier for would-be attackers to find success as systems are not as closely monitored.…
The ASEC analysis team monitors phishing email threats with the ASEC automatic sample analysis system (RAPIT) and honeypot. This post will cover the cases of distribution of phishing emails during the week from December 18th, 2022 to December 24th, 2022 and provide statistical information on each type.…
The ASEC analysis team monitors phishing email threats with the ASEC automatic sample analysis system (RAPIT) and honeypot. This post will cover the cases of distribution of phishing emails during the week from December 25th, 2022 to December 31st, 2022 and provide statistical information on each type.…
Recently, a dependency of the widely used PyTorch-nightly Python package was targeted in a dependency confusion attack, resulting in thousands of individuals downloading a malicious binary that exfiltrated data through DNS. The individual responsible for this attack claimed to be a security researcher whose research had gone awry.…
By Nati Tal (Guardio Labs)
TL;DRA newly uncovered technique to abuse Google’s ad-words powerful advertisement platform is spreading rogue promoted search results in mass. Pointing to allegedly credible advertisement sites that are fully controlled by threat actors, those are used to masquerade and redirect ad-clickers to malicious phishing pages gaining the powerful credibility and targeting capabilities of Google’s search results.…
The Wordfence Threat Intelligence team has been tracking exploits targeting a Critical Severity Arbitrary File Upload vulnerability in YITH WooCommerce Gift Cards Premium, a plugin with over 50,000 installations according to the vendor.
The vulnerability, reported by security researcher Dave Jong and publicly disclosed on November 22, 2022, impacts plugin versions up to and including 3.19.0 and allows unauthenticated attackers to upload executable files to WordPress sites running a vulnerable version of the plugin.…
For most people, taxes are a certainty. In the United States and Canada, tax forms are usually submitted by individuals and businesses in the spring (although, due to COVID, extensions were granted for anyone that asked for them). So, our interest was piqued when we came across an e-mail that included a tax form seemingly from the United States Internal Revenue Service (IRS) in early November.…
A malicious Python file found on the PyPI repository adds backdoor and data exfiltration features to what appears to be a legitimate SDK client from SentinelOne.
Views: 0…
Threat actors are increasingly leveraging blockchain technology to launch cyberattacks. By taking advantage of the distributed and decentralized nature of blockchain, malicious actors can exploit its anonymity for a variety of attacks, ranging from malware propagation to ransomware distribution.
The Glupteba trojan is an example of a threat actor leveraging blockchain-based technologies to carry out their malicious activity.…
Cloud Atlas (or Inception) is a cyber-espionage group. Since its discovery in 2014, they have launched multiple, highly targeted attacks on critical infrastructure across geographical zones and political conflicts. The group’s tactics, techniques and procedures (TTPs) have remained relatively static over the years. However, since the rapid escalation of the conflict between Russia and Ukraine in 2021 and especially after the outbreak of war in February 2022, the scope of the group’s activities has narrowed significantly, with a clear focus on Russia, Belarus and conflicted areas in Ukraine and Moldova.…
The Wordfence Threat Intelligence team continually monitors trends in the attack data we collect. Occasionally an unusual trend will arise from this data, and we have spotted one such trend standing out over the Thanksgiving holiday in the U.S. and the first weekend in December. Attack attempts have spiked for vulnerabilities in two plugins.…
Introduction
Read More Specialists at the PT Expert Security Center have been monitoring the Cloud Atlas group since May 2019. According to our data, its attacks have been targeting the government sector of the following countries:
Russia Belarus Azerbaijan Turkey SloveniaThe goals of the group are espionage and theft of confidential information.…