Search results for trojan downloader virus | Breaking Cybersecurity News | The Hacker News

Russian anti-virus company Doctor Web is warning users about the malicious program which is helping attackers carry out mass spam mailings and allow attacker to use victim's PC as slave of his DDOS Army. According to researchers from the company they have discovered a Trojan " Trojan.Proxy.23012 " application that uses a rare method of distribution through peer networks. " The botnet, consisting of Trojan.Proxy.23012-infected computers, is used by criminals to control proxy servers for the purpose of using them to send spam upon command ". An example of such a spam message is shown in the screenshot below. This Malware work as: 1.) Using peer to peer network it will download the executable file and that will be a encrypted malicious module. A very interesting algorithm used by the Trojan to download the infected computer other malware. 2.) After successfully decrypt it launches another module that reads the image in computer memory or other malicious applica...

Virus removal website compromised to serving malware One of the Famous Virus Removal Service website : laptopvirusrepair.co.uk  is compromised and Hacker is Serving Malware on the website. In above screenshot Avira detects the JS/Blacole.psak Java script Virus hosted on the site.  The snippet of code is located at the bottom of the index page: It is an obfuscated iframe that redirects to a site that will deliver exploits:  zdesestvareznezahodi.com/tds/go.php?sid=1 . This Site is listed in  malwareblacklist .  Detected Virus is : Kaspersky: Trojan-Downloader.JS.Agent.geo and Effected Platforms / OS: • Windows 95 • Windows 98 • Windows 98 SE • Windows NT • Windows ME • Windows 2000 • Windows XP • Windows 2003 • Windows Vista • Windows Server 2008 • Windows 7 Side effects of JS/Blacole.psak Java script Virus: • Can be used to execute malicious code • Drive-by download

A new rootkit that uses the master boot record (MBR) to hide itself has been discovered in China and is being used to install an online game password stealer. The bootkit is installed on the computer by a trojan downloader distributed from a Chinese adult site and is detected by Kaspersky as Rookit.Win32.Fisp.a. Once executed, the rootkit makes a copy of the old MBR and replaces the sectors with its own code which includes an encrypted driver. When the computer boots, the malicious code executes and restores the original MBR so that Windows can load normally. It then uses hooks to replace the fips.sys system driver with a malicious one. "It should be noted that the driver fips.sys is not required for the operating system to run correctly, so the system won't crash when it is replaced," says Kaspersky Lab expert Vyacheslav Zakorzhevsky. The driver scans loaded processes to determine if they belong to one of over a dozen antivirus programs and prevent them from running...

If you came across any Facebook message with a video link sent by anyone, even your friend — just don't click on it. Security researchers at Kaspersky Lab have spotted an ongoing cross-platform campaign on Facebook Messenger, where users receive a video link that redirects them to a fake website, luring them to install malicious software. Although it is still unclear how the malware spreads, researchers believe spammers are using compromised accounts, hijacked browsers, or clickjacking techniques to spread the malicious link. The attackers make use of social engineering to trick users into clicking the video link, which purports to be from one of their Facebook friends, with the message that reads "< your friend name > Video" followed by a bit.ly link, as shown. Here's How this Cross-Platform Malware Works: The URL redirects victims to a Google doc that displays a dynamically generated video thumbnail, like a playable movie, based on the sender'...

Attackers are targeting people searching for last-minute Halloween costume ideas, reported CyberDefender on Oct. 29. The Internet security vendor, along with other firms like Blue Coat and BitDefender, warned users about the dangers of searching online for Halloween-related topics. "Popular search terms have always been a target for cyber-criminals," said Achal Khetarpal, director of CyberDefender Research Labs. CyberDefender identified a fake anti-virus Trojan downloader infecting pages related to Halloween costume searches. When users visit these pages, the fake anti-virus installer hijacks the user's web browser and initiates a malicious process, making the PC sluggish and exposing personal data. One form of this attack, identified by Panda Labs, displays a fake video player page and prompts users to download a codec to play the video. "Popular search terms reflect current user interests, making them lucrative targets," Khetarpal explained. Criminals create p...

Cyber criminals are taking advantage of the widespread popularity of the mobile messaging app ' WhatsApp '. A malware expert at the Kaspersky Lab revealed a large-scale spamming campaign, advertising a fake PC version of the WhatsApp , to spread a banking trojan. According to the report, unaware users have received an email written in Portuguese language , it also tries to deceive the recipient with a social engineering tactic in which cyber criminals composed the malicious email informing that victims already have 11 pending friend invitations.  If users click on the " Baixar Agora " (Download Now) link in the spam email, they will be redirected to a Hightail.com URL to download the Trojan. Hightail is a cloud storage service, the malicious component deployed on it then downloads the malware via a server in Brazil. The file stored on Hightail server looks like a 64-bit installation file bundled with 2.5 megabyte MP3 file. According to Virus Total engine, onl...

In a joint effort by several law enforcement agencies from 6 different countries, officials have dismantled a major global organized cybercrime network behind GozNym banking malware . GozNym banking malware is responsible for stealing nearly $100 million from over 41,000 victims across the globe, primarily in the United States and Europe, for years. GozNym was created by combining two known powerful Trojans—Gozi ISFB malware, a banking Trojan that first appeared in 2012 and Nymaim, a Trojan downloader that can also function as ransomware. In a press conference held on Thursday, Europol said the operation was successfully conducted with the cooperation between Bulgaria, Germany, Georgia, Moldova, Ukraine, and the United States. The United States has charged ten members of the GozNym criminal network, 5 of which were arrested during several coordinated searches conducted in Bulgaria, Georgia, Moldova, and Ukraine. However, rest of the five defendants reside in Rus...

Security researcher has discovered some new features in the most dangerous Vawtrak , aka Neverquest , malware that allow it to send and receive data through encrypted favicons distributed over the secured Tor network . The researcher, Jakub Kroustek from AVG anti-virus firm, has provided an in-depth analysis ( PDF ) on the new and complex set of features of the malware which is considered to be one of the most dangerous threats in existence. Vawtrak is a sophisticated piece of malware in terms of supported features. It is capable of stealing financial information and executing transactions from the compromised computer remotely without leaving traces. The features include videos and screenshots capturing and launching man-in-the-middle attacks. HOW VAWTRAK SPREADS ? AVG anti-virus firm is warning users that it has discovered an ongoing campaign delivering Vawtrak to gain access to bank accounts visited by the victim and using the infamous Pony module in order to ste...

A new dangerous variant of ZeuS Banking Trojan has been identified by Comodo AV labs which is signed by stolen Digital Certificate which belongs to Microsoft Developer to avoid detection from Web browsers and anti-virus systems. Every Windows PC in the world is set to accept software " signed " with Microsoft's digital certificates of authenticity, an extremely sensitive cryptography seal. Cyber Criminals somehow managed to hack valid Microsoft digital certificate, used it to trick users and admins into trusting the file. Since the executable is digitally signed by the Microsoft developer no antivirus tool could find it as malicious. Digitally signed malware received a lot of media attention last year. Reportedly, more than 200,000 unique malware binaries were discovered in past two years signed with valid digital signatures. A Comodo User submitted a sample of the malicious software that attempts to trick user by masquerading itself as file of Intern...

Intelligence agencies in the US have released information about a new variant of 12-year-old computer virus used by China's state-sponsored hackers targeting governments, corporations, and think tanks. Named " Taidoor, " the malware has done an 'excellent' job of compromising systems as early as 2008 , with the actors deploying it on victim networks for stealthy remote access. "[The] FBI has high confidence that Chinese government actors are using malware variants in conjunction with proxy servers to maintain a presence on victim networks and to further network exploitation," the US Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the Department of Defense (DoD) said in a joint advisory . The US Cyber Command has also uploaded four samples of the Taidoor RAT on the public malware repository VirusTotal to let 50+ Antivirus companies check the virus's involvement in other unattributed cam...

A massive malicious email campaign that stems from the world's largest spam botnet Necurs is spreading a new strain of ransomware at the rate of over 2 million emails per hour and hitting computers across the globe. The popular malspam botnet Necrus which has previously found distributing Dridex banking trojan , Trickbot banking trojan , Locky ransomwar e, and Jaff ransomware , has now started spreading a new version of Scarab ransomware. According to F-Secure , Necurs botnet is the most prominent deliverer of spam emails with five to six million infected hosts online monthly and is responsible for the biggest single malware spam campaigns. Scarab ransomware is a relatively new ransomware family that was initially spotted by ID Ransomware creator Michael Gillespie in June this year. Massive Email Campaign Spreads Scarab Ransomware According to a blog post published by security firm Forcepoint, the massive email campaign spreading Scarab ransomware virus started at ...

Cybersecurity researchers have uncovered an updated version of malware called ValleyRAT that's being distributed as part of a new campaign. "In the latest version, ValleyRAT introduced new commands, such as capturing screenshots, process filtering, forced shutdown, and clearing Windows event logs," Zscaler ThreatLabz researchers Muhammed Irfan V A and Manisha Ramcharan Prajapati said . ValleyRAT was previously documented by QiAnXin and Proofpoint in 2023 in connection with a phishing campaign targeting Chinese-speaking users and Japanese organizations that distributed various malware families such as Purple Fox and a variant of the Gh0st RAT trojan known as Sainbox RAT (aka FatalRAT). The malware has been assessed to be the work of a China-based threat actor, boasting of capabilities to harvest sensitive information and drop additional payloads onto compromised hosts. The starting point is a downloader that utilizes an HTTP File Server (HFS) to fetch a file named...

The China-linked threat actor known as UNC5174 has been attributed to a new campaign that leverages a variant of a known malware dubbed SNOWLIGHT and a new open-source tool called VShell to infect Linux systems. "Threat actors are increasingly using open source tools in their arsenals for cost-effectiveness and obfuscation to save money and, in this case, plausibly blend in with the pool of non-state-sponsored and often less technical adversaries (e.g., script kiddies), thereby making attribution even more difficult," Sysdig researcher Alessandra Rizzo said in a report shared with The Hacker News. "This seems to hold especially true for this particular threat actor , who has been under the radar for the last year since being affiliated with the Chinese government." UNC5174, also referred to as Uteus (or Uetus), was previously documented by Google-owned Mandiant as exploiting security flaws in Connectwise ScreenConnect and F5 BIG-IP software to deliver a C-base...

An Arkansas lawyer representing three police whistleblowers has claimed that the law enforcement officials at the Fort Smith Police Department (FSPD) tried to infect his computer with Trojan viruses in order to spy on their legal opponents. What's the issue? A lawyer Matthew Campbell of the Pinnacle Law Firm in North Little Rock is representing Don Paul Bales, Rick Entmeier, and Wendall Sampson, current and former officers of the Fort Smith Police Department in the lawsuit since January 2014. The three whistleblowers exposed some frauds within the corrupt department, and, therefore, the police have illegally investigated them. " Since July 2013, the plaintiffs have been the target of nearly two dozen various investigations , Campbell told the Northwest Arkansas Democrat Gazette. " [This range] from accusations that they misspent FSPD funds to allegations that they were impugning the FSPD on Facebook. " What happened? Campbell provided a blank ha...

From sophisticated nation-state campaigns to stealthy malware lurking in unexpected places, this week's cybersecurity landscape is a reminder that attackers are always evolving. Advanced threat groups are exploiting outdated hardware, abusing legitimate tools for financial fraud, and finding new ways to bypass security defenses. Meanwhile, supply chain threats are on the rise, with open-source repositories becoming a playground for credential theft and hidden backdoors. But it's not all bad news—law enforcement is tightening its grip on cybercriminal networks, with key ransomware figures facing extradition and the security community making strides in uncovering and dismantling active threats. Ethical hackers continue to expose critical flaws, and new decryptors offer a fighting chance against ransomware operators. In this week's recap, we dive into the latest attack techniques, emerging vulnerabilities, and defensive strategies to keep you ahead of the curve. Stay informed, stay sec...

The Chinese hacking group known as Mustang Panda (aka HoneyMyte) has leveraged a previously undocumented kernel-mode rootkit driver to deliver a new variant of backdoor dubbed TONESHELL in a cyber attack detected in mid-2025 targeting an unspecified entity in Asia. The findings come from Kaspersky, which observed the new backdoor variant in cyber espionage campaigns mounted by the hacking group targeting government organizations in Southeast and East Asia, primarily Myanmar and Thailand. "The driver file is signed with an old, stolen, or leaked digital certificate and registers as a minifilter driver on infected machines," the Russian cybersecurity company said . "Its end-goal is to inject a backdoor trojan into the system processes and provide protection for malicious files, user-mode processes, and registry keys." The final payload deployed as part of the attack is TONESHELL, an implant with reverse shell and downloader capabilities to fetch next-stage malwa...