Between February and March 2022, our FortiGuard Labs team observed that the Beastmode (aka B3astmode) Mirai-based DDoS campaign has aggressively updated its arsenal of exploits. Five new exploits were added within a month, with three targeting various models of TOTOLINK routers.
This inclusion of TOTOLINK exploits is especially noteworthy as they were added just a week after the exploit codes were published on GitHub.…
In this intrusion from December 2021, the threat actors utilized IcedID as the initial access vector. IcedID is a banking trojan that first appeared in 2017, usually, it is delivered via malspam campaigns and has been widely used as an initial access vector in multiple ransomware intrusions.…
Geopolitical tensions often make headlines and present a golden opportunity for threat actors to exploit the situation, especially those targeting high-profile victims. In the past month while the Russian invasion of Ukraine was unfolding, Check Point Research (CPR) has observed advanced persistent threat (APT) groups around the world launching new campaigns, or quickly adapting ongoing ones to target victims with spear-phishing emails using the war as a lure.…
By Securonix Threat Labs, Threat Research
IntroductionThe Securonix Threat Research team has identified a currently unpatched zero-day vulnerability in Spring Core, a widely used Java-based platform with cross platform support. Early details claim that the bug would allow full remote code execution (RCE) to affected systems.…
By Juan Andres Guerrero-Saade (@juanandres_gs) and Max van Amerongen (@maxpl0it)
Executive SummaryOn Thursday, February 24th, 2022, a cyber attack rendered Viasat KA-SAT modems inoperable in Ukraine. Spillover from this attack rendered 5,800 Enercon wind turbines in Germany unable to communicate for remote monitoring or control.…During the past month, FortiEDR detected a campaign by Deep Panda, a Chinese APT group. The group exploited the infamous Log4Shell vulnerability in VMware Horizon servers. The nature of targeting was opportunistic insofar that multiple infections in several countries and various sectors occurred on the same dates.…
Juniper Threat Labs has uncovered an attack that targets Redis Servers using a recently disclosed vulnerability, namely CVE-2022-0543. This vulnerability exists in some Redis Debian packages. The attack started on March 11, 2022 from the same threat actor we’ve seen targeting confluence servers back in September 2021 and the same group targeting Log4j back in December.…
We recently discovered an APT campaign we are calling Operation Dragon Castling. The campaign is targeting what appears to be betting companies in South East Asia, more specifically companies located in Taiwan, the Philippines, and Hong Kong. With moderate confidence, we can attribute the campaign to a Chinese speaking APT group, but unfortunately cannot attribute the attack to a specific group and are not sure what the attackers are after.…
A Cobalt Strike Cybercrime Syndicate and the Ransomware Hackers’ Favorite Weapon
On March 9, the Cybersecurity and Infrastructure Security Agency (CISA) and the U.S. Secret Service issued an updated alert about the Conti ransomware group, encouraging organizations to review their advisory and apply the recommended mitigations.…
This is the story of piecing together information and research leading to the discovery of one of the largest botnet-as-a-service cybercrime operations we’ve seen in a while. This research reveals that a cryptomining malware campaign we reported in 2018, Glupteba malware, significant DDoS attacks targeting several companies in Russia, including Yandex, as well as in New Zealand, and the United States, and presumably also the TrickBot malware were all distributed by the same C2 server.…
Information stealing malware is on the rise. Cyble Research Labs recently discovered a new malware dubbed “AvD crypto stealer” on a cybercrime forum. Upon further investigation, however, we observed that this does not function as a Crypto Stealer. This is, in fact, a disguised variant of well-known Clipper malware that can read and edit any text copied by the victim i.e.…
In December 2021, we observed an adversary exploiting the Microsoft Exchange ProxyShell vulnerabilities to gain initial access and execute code via multiple web shells. The overlap of activities and tasks was remarkably similar to that observed in our previous report, “Exchange Exploit Leads to Domain Wide Ransomware“.…
The DirtyMoe malware is deployed using various kits like PurpleFox or injected installers of Telegram Messenger that require user interaction. Complementary to this deployment, one of the DirtyMoe modules expands the malware using worm-like techniques that require no user interaction.
This research analyzes this worming module’s kill chain and the procedures used to launch/control the module through the DirtyMoe service.…
Summary
Multifactor Authentication (MFA): A Cybersecurity Essential• MFA is one of the most important cybersecurity practices to reduce the risk of intrusions—according to industry research, users who enable MFA are up to 99 percent less likely to have an account compromised.• Every organization should enforce MFA for all employees and customers, and every user should sign up for MFA when available.•…
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats within minutes.
We have discovered some of the most dangerous threats and nation state attacks in our space – including the Kaseya MSP breach and the more_eggs malware.…
By Edmund Brumaghin, with contributions from Jonathan Byrne, Perceo Lemos and Vasileios Koutsoumpogeras.
This post is also available in:日本語 (Japanese)
Українська (Ukrainian)
Executive SummarySince the beginning of the war in Ukraine, we have observed threat actors using email lures with themes related to the conflict, including humanitarian assistance and various types of fundraising.…Українська (Ukrainian)
Update March 17, 2022: Cisco Talos has updated the IOC section with additional hashes and ClamAV coverage.
Executive summaryOpportunistic cybercriminals are attempting to exploit Ukrainian sympathizers by offering malware purporting to be offensive cyber tools to target Russian entities.…In March 2022, we came across evidence that another, relatively unknown, ransomware known as Nokoyawa is likely connected with Hive, as the two families share some striking similarities in their attack chain, from the tools used to the order in which they execute various steps.
Hive, which is one of the more notable ransomware families of 2021, made waves in the latter half of the year after breaching over 300 organizations in just four months — allowing the group to earn what could potentially be millions of US dollars in profit.…
Over the past year the TeamTNT threat actor has been very active. TeamTNT is one of the predominant cryptojacking threat actors currently targeting Linux servers.…
