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CERT-UA | Breaking Cybersecurity News | The Hacker News

New IDAT Loader Attacks Using Steganography to Deploy Remcos RAT

New IDAT Loader Attacks Using Steganography to Deploy Remcos RAT

Feb 26, 2024 Steganography / Malware
Ukrainian entities based in Finland have been targeted as part of a malicious campaign distributing a commercial remote access trojan known as Remcos RAT using a malware loader called IDAT Loader. The attack has been attributed to a threat actor tracked by the Computer Emergency Response Team of Ukraine (CERT-UA) under the moniker UAC-0184. "The attack, as part of the IDAT Loader, used steganography as a technique," Morphisec researcher Michael Dereviashkin said in a report shared with The Hacker News. "While steganographic, or 'Stego' techniques are well-known, it is important to understand their roles in defense evasion, to better understand how to defend against such tactics." IDAT Loader , which overlaps with another loader family called Hijack Loader, has been used to serve additional payloads like DanaBot, SystemBC, and RedLine Stealer in recent months. It has also been used by a threat actor tracked as TA544 to distribute Remcos RAT and SystemBC
DirtyMoe Malware Infects 2,000+ Ukrainian Computers for DDoS and Cryptojacking

DirtyMoe Malware Infects 2,000+ Ukrainian Computers for DDoS and Cryptojacking

Feb 02, 2024 Cryptojacking / Malware
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned that more than 2,000 computers in the country have been infected by a strain of malware called DirtyMoe. The agency  attributed  the campaign to a threat actor it calls  UAC-0027 . DirtyMoe , active since at least 2016, is capable of carrying out cryptojacking and distributed denial-of-service (DDoS) attacks. In March 2022, cybersecurity firm Avast revealed the malware's ability to propagate in a worm-like fashion by taking advantage of known security flaws. The DDoS botnet is known to be delivered by means of another malware referred to as  Purple Fox  or via bogus MSI installer packages for popular software such as Telegram. Purple Fox is also  equipped with a rootkit  that allows the threat actors to  hide the malware  on the machine and make it difficult to detect and remove. The exact initial access vector used in the campaign targeting Ukraine is currently unknown. CERT-UA is recommending that organiza
How Nation-State Actors Target Your Business: New Research Exposes Major SaaS Vulnerabilities

How Nation-State Actors Target Your Business: New Research Exposes Major SaaS Vulnerabilities

Feb 15, 2024SaaS Security / Risk Management
With many of the highly publicized 2023 cyber attacks revolving around one or more SaaS applications, SaaS has become a cause for genuine concern in many boardroom discussions. More so than ever, considering that GenAI applications are, in fact, SaaS applications. Wing Security (Wing), a SaaS security company, conducted an analysis of 493 SaaS-using companies in Q4 of 2023.  Their study reveals  how companies use SaaS today, and the wide variety of threats that result from that usage. This unique analysis provides rare and important insights into the breadth and depth of SaaS-related risks, but also provides practical tips to mitigate them and ensure SaaS can be widely used without compromising security posture.  The TL;DR Version Of SaaS Security 2023 brought some now infamous examples of malicious players leveraging or directly targeting SaaS, including the North Korean group UNC4899, 0ktapus ransomware group, and Russian Midnight Blizzard APT, which targeted well-known organizat
CERT-UA Uncovers New Malware Wave Distributing OCEANMAP, MASEPIE, STEELHOOK

CERT-UA Uncovers New Malware Wave Distributing OCEANMAP, MASEPIE, STEELHOOK

Dec 29, 2023 Email Security / Malware
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of a new phishing campaign orchestrated by the  Russia-linked APT28 group  to deploy previously undocumented malware such as OCEANMAP, MASEPIE, and STEELHOOK to harvest sensitive information. The activity, which was  detected  by the agency between December 15 and 25, 2023, targeted Ukrainian government entities and Polish organizations with email messages urging recipients to click on a link to view a document. However, to the contrary, the links redirect to malicious web resources that abuse JavaScript and the  "search-ms:" URI protocol handler  to drop a Windows shortcut file (LNK) that launches PowerShell commands to activate an infection chain for a new malware known as MASEPIE. MASEPIE is a Python-based tool to download/upload files and execute commands, with communications with the command-and-control (C2) server taking place over an encrypted channel using the TCP protocol. The attacks further
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Are You Vulnerable to Third-Party Breaches Through Interconnected SaaS Apps?

websiteWing SecuritySaaS Security / Risk Management
Protect against cascading risks by identifying and mitigating app2app and third-party SaaS vulnerabilities.
UAC-0099 Using WinRAR Exploit to Target Ukrainian Firms with LONEPAGE Malware

UAC-0099 Using WinRAR Exploit to Target Ukrainian Firms with LONEPAGE Malware

Dec 22, 2023 Malware / Cyber Attack
The threat actor known as  UAC-0099  has been linked to continued attacks aimed at Ukraine, some of which leverage a high-severity flaw in the WinRAR software to deliver a malware strain called LONEPAGE. "The threat actor targets Ukrainian employees working for companies outside of Ukraine," cybersecurity firm Deep Instinct  said  in a Thursday analysis. UAC-0099 was  first documented  by the Computer Emergency Response Team of Ukraine (CERT-UA) in June 2023, detailing its attacks against state organizations and media entities for espionage motives. The attack chains leveraged phishing messages containing HTA, RAR, and LNK file attachments that led to the deployment of  LONEPAGE , a Visual Basic Script (VBS) malware that's capable of contacting a command-and-control (C2) server to retrieve additional payloads such as keyloggers, stealers, and screenshot malware. "During 2022-2023, the mentioned group received unauthorized remote access to several dozen computer
Cyber Attacks Strike Ukraine's State Bodies in Espionage Operation

Cyber Attacks Strike Ukraine's State Bodies in Espionage Operation

May 24, 2023 Cyber War / Threat Intel
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of cyber attacks targeting state bodies in the country as part of an espionage campaign. The  intrusion set , attributed to a threat actor tracked by the authority as UAC-0063 since 2021, leverages phishing lures to deploy a variety of malicious tools on infected systems. The origins of the hacking crew are presently unknown. In the attack chain described by the agency, the emails targeted an unspecified ministry and purported to be from the Embassy of Tajikistan in Ukraine. It's suspected that the messages were sent from a previously compromised mailbox. The emails come attached with a Microsoft Word document that, upon enabling macros, launches an encoded VBScript called HATVIBE, which is then used to drop additional malware. This includes a keylogger (LOGPIE), a Python-based backdoor capable of running commands sent from a remote server (CHERRYSPY), and a tool focused on exfiltrating files with specific e
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