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Category — botnet
French Police Remotely Removed RETADUP Malware from 850,000 Infected PCs

French Police Remotely Removed RETADUP Malware from 850,000 Infected PCs

Aug 28, 2019
The French law enforcement agency, National Gendarmerie, today announced the successful takedown of one of the largest wide-spread RETADUP botnet malware and how it remotely disinfected more than 850,000 computers worldwide with the help of researchers. Earlier this year, security researchers at Avast antivirus firm, who were actively monitoring the activities of RETADUP botnet, discovered a design flaw in the malware's C&C protocol that could have been exploited to remove the malware from victims' computer without executing any extra code. However, to do that, the plan required researchers to have control over the malware's C&C server, which was hosted with a hosting provider located in the Ile-de-France region in north-central France. Therefore, the researchers contacted the Cybercrime Fighting Center (C3N) of the French National Gendarmerie at the end of March this year, shared their findings, and proposed a secret plan to put an end to the RETADUP vir...
New Brute-Force Botnet Targeting Over 1.5 Million RDP Servers Worldwide

New Brute-Force Botnet Targeting Over 1.5 Million RDP Servers Worldwide

Jun 07, 2019
Security researchers have discovered an ongoing sophisticated botnet campaign that is currently brute-forcing more than 1.5 million publicly accessible Windows RDP servers on the Internet. Dubbed GoldBrute , the botnet scheme has been designed in a way to escalate gradually by adding every new cracked system to its network, forcing them to further find new available RDP servers and then brute force them. To fly under the radar of security tools and malware analysts, attackers behind this campaign command each infected machine to target millions of servers with a unique set of username and password combination so that a targeted server receives brute force attempts from different IP addresses. The campaign, discovered  by Renato Marinho at Morphus Labs, works as shown in the illustrated image, and its modus operandi has been explained in the following steps: Step 1 — After successfully brute-forcing an RDP server, the attacker installs a JAVA-based GoldBrute botnet malw...
The Future of Serverless Security in 2025: From Logs to Runtime Protection

The Future of Serverless Security in 2025: From Logs to Runtime Protection

Nov 28, 2024Cloud Security / Threat Detection
Serverless environments, leveraging services such as AWS Lambda, offer incredible benefits in terms of scalability, efficiency, and reduced operational overhead. However, securing these environments is extremely challenging. The core of current serverless security practices often revolves around two key components: log monitoring and static analysis of code or system configuration. But here is the issue with that: 1. Logs Only Tell Part of the Story Logs can track external-facing activities, but they don't provide visibility into the internal execution of functions. For example, if an attacker injects malicious code into a serverless function that doesn't interact with external resources (e.g., external APIs or databases), traditional log-based tools will not detect this intrusion. The attacker may execute unauthorized processes, manipulate files, or escalate privileges—all without triggering log events. 2. Static Misconfiguration Detection is Incomplete Static tools that check ...
FBI Mapping 'Joanap Malware' Victims to Disrupt the North Korean Botnet

FBI Mapping 'Joanap Malware' Victims to Disrupt the North Korean Botnet

Jan 31, 2019
The United States Department of Justice (DoJ) announced Wednesday its effort to "map and further disrupt" a botnet tied to North Korea that has infected numerous Microsoft Windows computers across the globe over the last decade. Dubbed Joanap , the botnet is believed to be part of " Hidden Cobra "—an Advanced Persistent Threat (APT) actors' group often known as Lazarus Group and Guardians of Peace and backed by the North Korean government. Hidden Cobra is the same hacking group that has been allegedly associated with the WannaCry ransomware menace in 2016, the SWIFT Banking attack in 2016, as well as Sony Motion Pictures hack in 2014. Dates back to 2009, Joanap is a remote access tool (RAT) that lands on a victim's system with the help an SMB worm called Brambul , which crawls from one computer to another by brute-forcing Windows Server Message Block (SMB) file-sharing services using a list of common passwords. Once there, Brambul downloads Jo...
cyber security

Creating, Managing and Securing Non-Human Identities

websitePermisoCybersecurity / Identity Security
A new class of identities has emerged alongside traditional human users: non-human identities (NHIs). Permiso Security's new eBook details everything you need to know about managing and securing non-human identities, and strategies to unify identity security without compromising agility.
Ukrainian Police Arrest 6 Hackers Linked to DDoS and Financial Attacks

Ukrainian Police Arrest 6 Hackers Linked to DDoS and Financial Attacks

Jan 17, 2019
Ukrainian Police have this week busted out two separate groups of hackers involved in carrying out DDoS attacks against news agencies and stealing money from Ukrainian citizens, respectively. According to the authorities, the four suspected hackers they arrested last week , all aged from 26 to 30 years, stole more than 5 million Hryvnia (around 178,380 USD) from the bank accounts of Ukrainian citizens by hacking into their computers. The suspects carried out their attacks by scanning vulnerable computers on the Internet and infecting them with a custom Trojan malware to take full remote control of the systems. The group then apparently enabled key-logging on the infected computers in an attempt to capture banking credentials of victims when the owners of those infected computers fill in that information on any banking site or their digital currency wallet. Once getting a hold on the victims banking and financial data, the attackers logged into their online banking accounts ...
New Malware Combines Ransomware, Coin Mining and Botnet Features in One

New Malware Combines Ransomware, Coin Mining and Botnet Features in One

Sep 19, 2018
Windows and Linux users need to beware, as an all-in-one, destructive malware strain has been discovered in the wild that features multiple malware capabilities including ransomware, cryptocurrency miner, botnet, and self-propagating worm targeting Linux and Windows systems. Dubbed XBash, the new malware, believed to be tied to the Iron Group, a.k.a. Rocke—the Chinese speaking APT threat actors group known for previous cyber attacks involving ransomware and cryptocurrency miners . According to the researchers from security vendor Palo Alto Networks, who uncovered the malware, XBash is an all-in-one malware that features ransomware and cryptocurrency mining capabilities, as well as worm-like ability similar to WannaCry or Petya/ NotPetya . In addition to self-propagating capabilities, XBash also contains a functionality, which is not yet implemented, that could allow the malware to spread quickly within an organization's network. Developed in Python, XBash hunts for vul...
Prowli Malware Targeting Servers, Routers, and IoT Devices

Prowli Malware Targeting Servers, Routers, and IoT Devices

Jun 07, 2018
After the discovery of massive VPNFilter malware botnet , security researchers have now uncovered another giant botnet that has already compromised more than 40,000 servers, modems and internet-connected devices belonging to a wide number of organizations across the world. Dubbed Operation Prowli , the campaign has been spreading malware and injecting malicious code to take over servers and websites around the world using various attack techniques including use of exploits, password brute-forcing and abusing weak configurations. Discovered by researchers at the GuardiCore security team, Operation Prowli has already hit more than 40,000 victim machines from over 9,000 businesses in various domains, including finance, education and government organisations. Here's the list devices and services infected by the Prowli malware: Drupal and WordPress CMS servers hosting popular websites Joomla! servers running the K2 extension Backup servers running HP Data Protector softw...
75% of the 'Left to Get Hacked' Redis Servers Found Infected

75% of the 'Left to Get Hacked' Redis Servers Found Infected

Jun 04, 2018
Despite the continual emergence of new cyber attacks because of misconfigured servers and applications, people continue to ignore security warnings. A massive malware campaign designed to target open Redis servers, about which researchers warned almost two months ago, has now grown and already hijacked at least 75% of the total servers running publicly accessible Redis instances. Redis, or REmote DIctionary Server, is an open source, widely popular data structure tool that can be used as an in-memory distributed database, message broker or cache. Since it is designed to be accessed inside trusted environments, it should not be exposed on the Internet. Dubbed RedisWannaMine , a similar malware leveraging same loophole was discovered in late March by data center security vendor Imperva and designed to drop a cryptocurrency mining script on the targeted servers—both database and application. According to Imperva's March blog post , this cryptojacking threat was "more c...
Hackers are exploiting a new zero-day flaw in GPON routers

Hackers are exploiting a new zero-day flaw in GPON routers

May 23, 2018
Even after being aware of various active cyber attacks against the GPON Wi-Fi routers, if you haven't yet taken them off the Internet, then be careful—because a new botnet has joined the GPON party, which is exploiting an undisclosed zero-day vulnerability in the wild. Security researchers from Qihoo 360 Netlab have warned of at least one botnet operator exploiting a new zero-day vulnerability in the Gigabit-capable Passive Optical Network (GPON) routers, manufactured by South Korea-based DASAN Zhone Solutions. The botnet, dubbed TheMoon, which was first seen in 2014 and has added at least 6 IoT device exploits to its successor versions since 2017, now exploits a newly undisclosed zero-day flaw for Dasan GPON routers. Netlab researchers successfully tested the new attack payload on two different versions of GPON home router, though they didn't disclose details of the payload or release any further details of the new zero-day vulnerability to prevent more attacks. Th...
Biggest-Ever DDoS Attack (1.35 Tbs) Hits Github Website

Biggest-Ever DDoS Attack (1.35 Tbs) Hits Github Website

Mar 02, 2018
On Wednesday, February 28, 2018, GitHub's code hosting website hit with the largest-ever distributed denial of service (DDoS) attack that peaked at record 1.35 Tbps. Interestingly, attackers did not use any botnet network, instead weaponized misconfigured Memcached servers to amplify the DDoS attack. Earlier this week we published a report detailing how attackers could abuse Memcached, popular open-source and easily deployable distributed caching system, to launch over 51,000 times powerful DDoS attack than its original strength. Dubbed Memcrashed , the amplification DDoS attack works by sending a forged request to the targeted Memcrashed server on port 11211 using a spoofed IP address that matches the victim's IP. A few bytes of the request sent to the vulnerable server trigger tens of thousands of times bigger response against the targeted IP address. "This attack was the largest attack seen to date by Akamai, more than twice the size of the September 2016...
Cryptocurrency Mining Malware Infected Over Half-Million PCs Using NSA Exploit

Cryptocurrency Mining Malware Infected Over Half-Million PCs Using NSA Exploit

Feb 01, 2018
2017 was the year of high profile data breaches and ransomware attacks, but from the beginning of this year, we are noticing a faster-paced shift in the cyber threat landscape, as cryptocurrency-related malware is becoming a popular and profitable choice of cyber criminals. Several cybersecurity firms are reporting of new cryptocurrency mining viruses that are being spread using EternalBlue —the same NSA exploit that was leaked by the hacking group Shadow Brokers and responsible for the devastating widespread ransomware threat WannaCry . Researchers from Proofpoint discovered a massive global botnet dubbed "Smominru," a.k.a Ismo, that is using EternalBlue SMB exploit (CVE-2017-0144) to infect Windows computers to secretly mine Monero cryptocurrency, worth millions of dollars, for its master. Active since at least May 2017, Smominru botnet has already infected more than 526,000 Windows computers, most of which are believed to be servers running unpatched versions of Wi...
Satori IoT Botnet Exploits Zero-Day to Zombify Huawei Routers

Satori IoT Botnet Exploits Zero-Day to Zombify Huawei Routers

Dec 23, 2017
Although the original creators of the infamous IoT malware Mirai have already been arrested and sent to jail, the variants of the notorious botnet are still in the game due to the availability of its source code on the Internet. Hackers have widely used the infamous IoT malware to quietly amass an army of unsecured internet-of-things devices , including home and office routers, that could be used at any time by hackers to launch Internet-paralyzing DDoS attacks . Another variant of Mirai has hit once again, propagating rapidly by exploiting a zero-day vulnerability in a Huawei home router model. Dubbed Satori (also known as Okiru), the Mirai variant has been targeting Huawei's router model HG532, as Check Point security researchers said they tracked hundreds of thousands of attempts to exploit a vulnerability in the router model in the wild. Identified initially by Check Point researchers late November, Satori was found infecting more than 200,000 IP addresses in just...
Feds Shut Down 'Longest-Running' Andromeda Botnet

Feds Shut Down 'Longest-Running' Andromeda Botnet

Dec 04, 2017
In a coordinated International cyber operation, Europol with the help of international law enforcement agencies has taken down what it called "one of the longest-running malware families in existence" known as Andromeda. Andromeda , also known as Win32/Gamarue, is an infamous HTTP-based modular botnet that has been around for several years now, and infecting computers with it's malicious intentions ever since. The primary goal of Andromeda bot is to distribute other malware families for mass global malware attacks. The botnet has been associated with at least 80 malware families, and in the last six months, it was detected (or blocked) on an average of more than 1 million machines per month. Last year, law enforcement agencies took down the criminal infrastructure of the infamous Avalanche botnet in a similar massive international cyber operation. Avalanche botnet was used as a delivery platform to spread other malware families, including Andromeda. While in...
Hackers Exploiting Microsoft Servers to Mine Monero - Makes $63,000 In 3 Months

Hackers Exploiting Microsoft Servers to Mine Monero - Makes $63,000 In 3 Months

Sep 28, 2017
Mining cryptocurrencies can be a costly investment as it takes a monstrous amount of computing power, and thus hackers have started using malware that steals computing resources of computers it hijacks to make lots of dollars in digital currency. Security researchers at security firm ESET have spotted one such malware that infected hundreds of Windows web servers with a malicious cryptocurrency miner and helped cybercriminals made more than $63,000 worth of Monero (XMR) in just three months. According to a report published by ESET today, cybercriminals only made modifications to legitimate open source Monero mining software and exploited a known vulnerability in Microsoft IIS 6.0 to secretly install the miner on unpatched Windows servers. Although ESET's investigation does not identify the attackers, it reports that the attackers have been infecting unpatched Windows web servers with the cryptocurrency miner since at least May 2017 to mine 'Monero,' a Bitcoin-like...
US Warns of 'DeltaCharlie' – A North Korean DDoS Botnet Malware

US Warns of 'DeltaCharlie' – A North Korean DDoS Botnet Malware

Jun 14, 2017
The United States government has released a rare alert about an ongoing, eight-year-long North Korean state-sponsored hacking operation. The joint report from the FBI and U.S. Department of Homeland Security (DHS) provided details on " DeltaCharlie ," a malware variant used by " Hidden Cobra " hacking group to infect hundreds of thousands of computers globally as part of its DDoS botnet network. According to the report, the Hidden Cobra group of hackers are believed to be backed by the North Korean government and are known to launch cyber attacks against global institutions, including media organizations, aerospace and financial sectors, and critical infrastructure. While the US government has labeled the North Korean hacking group Hidden Cobra, it is often known as Lazarus Group and Guardians of Peace – the one allegedly linked to the devastating WannaCry ransomware menace that shut down hospitals and businesses worldwide. DeltaCharlie – DDoS Botnet M...
More Hacking Groups Found Exploiting SMB Flaw Weeks Before WannaCry

More Hacking Groups Found Exploiting SMB Flaw Weeks Before WannaCry

May 19, 2017
Since the Shadow Brokers released the zero-day software vulnerabilities and hacking tools – allegedly belonged to the NSA's elite hacking team Equation Group – several hacking groups and individual hackers have started using them in their own way. The April's data dump was believed to be the most damaging release by the Shadow Brokers till the date, as it publicly leaked lots of Windows hacking tools , including dangerous Windows SMB exploit. After the outbreak of WannaCry last week, security researchers have identified multiple different campaigns exploiting Windows SMB vulnerability (CVE-2017-0143), called Eternalblue , which has already compromised hundreds of thousands of computers worldwide. I have been even confirmed by multiple sources in hacking and intelligence community that there are lots of groups and individuals who are actively exploiting Eternalblue for different motives. Moreover, the Eternalblue SMB exploit ( MS17-010 ) has now been ported to  Met...
Weeks Before WannaCry, Cryptocurrency Mining Botnet Was Using Windows SMB Exploit

Weeks Before WannaCry, Cryptocurrency Mining Botnet Was Using Windows SMB Exploit

May 16, 2017
A security researcher has just discovered a stealthy cryptocurrency-mining malware that was also using Windows SMB vulnerability at least two weeks before the outbreak of WannaCry ransomware attacks. According to Kafeine, a security researcher at Proofpoint , another group of cyber criminals was using the same EternalBlue exploit , created by the NSA and dumped last month by the Shadow Brokers, to infect hundreds of thousands of computers worldwide with a cryptocurrency mining malware called ' Adylkuzz .' This malicious campaign went unnoticed for weeks because unlike WannaCry , this malware does not install ransomware or notify victims, but instead, it quietly infects unpatched computers with malware that only mine ' Monero ,' a Bitcoin-like cryptocurrency. This Malware Saves Computers From Getting Hacked By WannaCry The Researcher believes Adylkuzz malware attack could be larger in scale than WannaCry ransomware attack because it has been designed to blo...
Botnet Sending 5 Million Emails Per Hour to Spread Jaff Ransomware

Botnet Sending 5 Million Emails Per Hour to Spread Jaff Ransomware

May 12, 2017
A massive malicious email campaign that stems from the Necurs botnet is spreading a new ransomware at the rate of 5 million emails per hour and hitting computers across the globe. Dubbed "Jaff," the new file-encrypting ransomware is very similar to the infamous Locky ransomware in many ways, but it is demanding 1.79 Bitcoins (approx $3,150), which much higher than Locky, to unlock the encrypted files on an infected computer. According to security researchers at Forcepoint Security Lab, Jaff ransomware, written in C programming language, is being distributed with the help of Necurs botnet that currently controls over 6 million infected computers worldwide. Necurs botnet is sending emails to millions of users with an attached PDF document, which if clicked, opens up an embedded Word document with a malicious macro script to downloads and execute the Jaff ransomware, Malwarebytes says . Jaff is Spreading at the Rate of 5 Million per Hour The malicious email camp...
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