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Mysterious Avatar rootkit with API, SDK, and Yahoo Groups for C&C communication

Mysterious Avatar rootkit with API, SDK, and Yahoo Groups for C&C communication

May 02, 2013Anonymous
Early 2012 ESET company a mysterious malware, dubbed the Avatar rootkit (Win32/Rootkit.Avatar), advertised in the underground forums by Russian cyber crime . " We present you here previously announced product. In connection with work on other projects, we moved the release date for the public from May to February 2013th 2012go.Now nuclear rootkit AVATAR is available for rental. " Despite the malware was described months ago it was not found and published until now, in March ESET researchers detected two droppers with different C&C servers and having different compilation time stamps as showed in the following pictures: The Avatar rootkit appears very sophisticated, it uses two different infection techniques, the first in the dropper so as to bypass detections by HIPS, and the second one in the rootkit driver to allow the malware to be alive after system reboot, the instance detected works only on x86 systems. The 2 level dropper for Avatar rootkit works in conjunct
Cybersecurity Researchers Spotted First-Ever UEFI Rootkit in the Wild

Cybersecurity Researchers Spotted First-Ever UEFI Rootkit in the Wild

September 27, 2018Swati Khandelwal
Cybersecurity researchers at ESET have unveiled what they claim to be the first-ever UEFI rootkit being used in the wild, allowing hackers to implant persistent malware on the targeted computers that could survive a complete hard-drive wipe. Dubbed LoJax , the UEFI rootkit is part of a malware campaign conducted by the infamous Sednit group, also known as APT28, Fancy Bear , Strontium , and Sofacy , to target several government organizations in the Balkans as well as in Central and Eastern Europe. Operating since at least 2007, Sednit group is a state-sponsored hacking group believed to be a unit of GRU (General Staff Main Intelligence Directorate), a Russian secret military intelligence agency. The hacking group has been associated with a number of high profile attacks, including the DNC hack just before the U.S. 2016 presidential election . UEFI, or Unified Extensible Firmware Interface, a replacement for the traditional BIOS, is a core and critical firmware component of a
New GPU-based Linux Rootkit and Keylogger with Excellent Stealth and Computing Power

New GPU-based Linux Rootkit and Keylogger with Excellent Stealth and Computing Power

May 09, 2015Swati Khandelwal
The world of hacking has become more organized and reliable over recent years and so the techniques of hackers. Nowadays, attackers use highly sophisticated tactics and often go to extraordinary lengths in order to mount an attack. And there is something new to the list: A team of developers has created not one, but two pieces of malware that run on an infected computer's graphics processor unit (GPU) instead of its central processor unit (CPU), in order to enhance their stealthiness and computational efficiency. The two pieces of malware: Jellyfish Rootkit for Linux operating system Demon Keylogger The source code of both the Jellyfish Rootkit and the Demon keylogger, which are described as proof-of-concepts malware, have been published on Github. Until now, security researchers have discovered nasty malware running on the CPU and exploiting the GPU capabilities in an attempt to mine cryptocurrencies such as Bitcoins. However, these two malware co
Stuxnet's Son "Duqu" Removal Tool released by Bitdefender

Stuxnet's Son "Duqu" Removal Tool released by Bitdefender

October 21, 2011Mohit Kumar
Stuxnet's Son " Duqu " Removal Tool released by Bitdefender Rootkit.Duqu is a new e-threat that combines the technology of the military-grade Stuxnet with an advanced keylogger and backdoor application. Due to its rootkit technology, the piece of malware can stay hidden from the user, the operating system's defense mechanism and even from regular antivirus utilities.Just like its predecessor – the Stuxnet rootkit - Rootkit.Duqu.A is digitally signed with a stolen digital certificate that has been revoked in the meantime. This allows it to install itself on both 32- and 64-bit operating systems on Windows platforms ranging from Windows XP to Windows 7. The Duqu rootkit runs on the computer for 36 days and collects any kind of information entered via the keyboard, including passwords, e-mail or IM conversations. After the "surveillance" period ends, the rootkit gracefully removes itself from the system, along with the keylogger component. Rootkit malware is extremely diff
Researchers Discover Microsoft-Signed FiveSys Rootkit in the Wild

Researchers Discover Microsoft-Signed FiveSys Rootkit in the Wild

October 22, 2021Ravie Lakshmanan
A newly identified rootkit has been found with a valid digital signature issued by Microsoft that's used to proxy traffic to internet addresses of interest to the attackers for over a year targeting online gamers in China. Bucharest-headquartered cybersecurity technology company Bitdefender named the malware " FiveSys ," calling out its possible credential theft and in-game-purchase hijacking motives. The Windows maker has since revoked the signature following responsible disclosure. "Digital signatures are a way of establishing trust," Bitdefender researchers said in a white paper, adding "a valid digital signature helps the attacker navigate around the operating system's restrictions on loading third-party modules into the kernel. Once loaded, the rootkit allows its creators to gain virtually unlimited privileges." Rootkits are both evasive and stealthy as they offer threat actors an entrenched foothold onto victims' systems and conceal
Yahoo Email Spying Scandal — Here's Everything that has Happened So Far

Yahoo Email Spying Scandal — Here's Everything that has Happened So Far

October 08, 2016Swati Khandelwal
Today Yahoo! is all over the Internet, but in a way the company would never have expected. It all started days ago when Reuters cited some anonymous sources and reported that Yahoo built a secret software to scan the emails of hundreds of millions of its users at the request of a U.S. intelligence service. At this point, we were not much clear about the intelligence agency: the National Security Agency or the FBI? The news outlet then reported that the company installed the software at the behest of Foreign Intelligence Surveillance Act (FISA) court order. Following the report, the New York Times reported that Yahoo used its system developed to scan for child p*rnography and spam to search for emails containing an undisclosed digital "signature" of a certain method of communication employed by a state-sponsored terrorist organization. Although Yahoo denied the reports, saying they are "misleading," a series of anonymous sources, therefore, unaccounta
Researchers Warn of Facefish Backdoor Spreading Linux Rootkits

Researchers Warn of Facefish Backdoor Spreading Linux Rootkits

May 28, 2021Ravie Lakshmanan
Cybersecurity researchers have disclosed a new backdoor program capable of stealing user login credentials, device information and executing arbitrary commands on Linux systems. The malware dropper has been dubbed " Facefish " by Qihoo 360 NETLAB team owing its capabilities to deliver different rootkits at different times and the use of  Blowfish  cipher to encrypt communications to the attacker-controlled server. "Facefish consists of 2 parts, Dropper and Rootkit, and its main function is determined by the Rootkit module, which works at the  Ring 3  layer and is loaded using the  LD_PRELOAD  feature to steal user login credentials by hooking ssh/sshd program related functions, and it also supports some backdoor functions," the researchers  said . The NETLAB research builds on a previous analysis  published  by Juniper Networks on April 26, which documented an attack chain targeting Control Web Panel (CWP, formerly CentOS Web Panel) to inject an SSH implant wit
Scranos: New Rapidly Evolving Rootkit-Enabled Spyware Discovered

Scranos: New Rapidly Evolving Rootkit-Enabled Spyware Discovered

April 16, 2019Swati Khandelwal
A new powerful rootkit-enabled spyware operation has been discovered wherein hackers are distributing multifunctional malware disguised as cracked software or trojanized app posing as legitimate software like video players, drivers and even anti-virus products. While the rootkit malware—dubbed Scranos —which was first discovered late last year, still appears to be a work in progress, it is continuously evolving, testing new components and regularly making an improvement to old components, which makes it a significant threat. Scranos features a modular design that has already gained capabilities to steal login credentials and payment accounts from various popular services, exfiltrate browsing history and cookies, get YouTube subscribers, display ads, as well as download and execute any payload. According to a 48 page in-depth report Bitdefender shared with The Hacker News prior to its release, the malware gains persistence on infected machines by installing a digitally-signed
Hacking Team Spyware preloaded with UEFI BIOS Rootkit to Hide Itself

Hacking Team Spyware preloaded with UEFI BIOS Rootkit to Hide Itself

July 14, 2015Mohit Kumar
Last Week someone just hacked the infamous Hacking Team , The Italy-based cyber weapons manufacturer and leaked a huge trove of 400GB internal data , including: Emails Hacking tools Zero-day exploits Surveillance tools Source code for Spyware A spreadsheet listing every government client with date of purchase and amount paid Hacking Team is known for its advanced and sophisticated Remote Control System (RCS) spyware , also known as Galileo , which is loaded with lots of zero-day exploits and have ability to monitor the computers of its targets remotely. Today, Trend Micro security researchers found that the Hacking Team " uses a UEFI  (Unified Extensible Firmware Interface)  BIOS Rootkit to keep their Remote Control System (RCS) agent installed in their targets' systems ." That clearly means, even if the user reinstalls the Operating System, formats the hard disk, and even buys a new hard disk, the agents are implanted after Microsoft Windows is
ZeuS Botnet Updating Infected Systems with Rootkit-Equipped Trojan

ZeuS Botnet Updating Infected Systems with Rootkit-Equipped Trojan

April 21, 2014Wang Wei
ZeuS , or Zbot is one of the oldest families of financial malware , it is a Trojan horse capable to carry out various malicious and criminal tasks and is often used to steal banking information. It is distributed to a wide audience, primarily through infected web pages, spam campaigns and drive-by downloads. Earlier this month, Comodo AV labs identified a dangerous variant of ZeuS Banking Trojan which is signed by stolen Digital Certificate belonging to Microsoft Developer to avoid detection from Web browsers and anti-virus systems.  FREE! FREE! ZeuS BRINGS ROOTKIT UPDATE Recently, the security researcher, Kan Chen at Fortinet has found that P2P Zeus botnet is updating its bots/infected systems with updates version that has the capability to drop a rootkit into infected systems and hides the trojan to prevent the removal of malicious files and registry entries. The new variant also double check for the earlier installed version (0x38) of ZeuS trojan on the infecte
New Linux Rootkit Attacks Internet Users

New Linux Rootkit Attacks Internet Users

December 02, 2012Mohit Kumar
Security researchers have discovered what appears to be an experimental Linux rootkit designed to infect its highly select victims during a classic drive-by website attack. The malware allows hackers to inject code directly in any infected web page. The new malware, discovered on November 13 of this year, was written especially for servers that run Debian Squeeze and NGINX, on 64 bits. About Rootkit :  Rootkit.Linux.Snakso.a is designed to infect the Linux kernel version 2.6.32-5-amd64 and adds an iframe to all served web pages by the infected Linux server via the nginx proxy.  Based on research, the rootkit may have been created by a Russia-based attacker. The recently discovered malware is very dangerous because it does not infect a specific website. It infects the entire server and this can endanger all websites hosted on that server. Drive-by-downloads expose web surfers to malicious code that attempt to exploit unpatched software vulnerabilities in the web visitor&#
Android Clickjacking Rootkit Demonstrated

Android Clickjacking Rootkit Demonstrated

July 04, 2012Mohit Kumar
Android Clickjacking Rootkit Demonstrated Mobile security researchers have identified an aspect of Android 4.0.4 (Ice Cream Sandwich) and earlier models that clickjacking rootkits could exploit. Researchers at NC State in the US have developed a proof-of-concept prototype rootkit that attacks the Android framework and could be used to steal personal information. What is clickjacking? It is a malicious technique that tricks users and is often used to take over computers, web cams, or snag confidential info that is revealed by users who thinks they are on an innocent webpage. Like most Android malware, the rootkit can be distributed as a malicious app, opening up a host of potential vulnerabilities on any device on which it is installed. However, it functions in a different way. The rootkit, which could be bundled with an app and is said to be undetectable by anti-virus packages, would allow an attacker to replace a smartphone's browser with a version that logs key strokes to cap
RKAnalyzer - kernel level rootkit analyzer !

RKAnalyzer - kernel level rootkit analyzer !

May 19, 2011Mohit Kumar
RKAnalyzer - kernel level rootkit analyzer ! RKAnalyzer is a kernel level rootkit analyzer and defender using Hardware Virtualization Techniques, based on the BitVisor Project(A VMM developed by Tsukuba University and open-sourced under BSD License). It tries to monitor kernel level rootkits' actions and log them. What differs RKAnalyzer with tranditional detection softwares(i.e. Rootkit Revealer, IceSword) is that RKAnalyzer actively intercepts rootkit actions, rather than reacting to rootkit after already infected. Also, RKAnalyzer support analysis mode, which differs from defend mode by presenting a much more transparent environment, in which rootkit would consider itself running without being monitored. How to Use :  https://code.google.com/p/rkanalyzer/wiki/HowToUse Download :  https://rkanalyzer.googlecode.com/svn/
Dangerous Rootkit found Pre-Installed on nearly 3 Million Android Phones

Dangerous Rootkit found Pre-Installed on nearly 3 Million Android Phones

November 19, 2016Swati Khandelwal
Here's some bad news for Android users again. Nearly 3 Million Android devices worldwide are vulnerable to man-in-the-middle (MITM) attacks that could allow attackers to remotely execute arbitrary code with root privileges, turning over full control of the devices to hackers. According to a new report from security rating firm BitSight, the issue is due to a vulnerability in the insecure implementation of the OTA (Over-the-Air) update mechanism used by certain low-cost Android devices, including BLU Studio G from US-based Best Buy. Backdoor/Rootkit Comes Pre-installed The vulnerable OTA mechanism, which is associated with Chinese mobile firm Ragentek Group, contains a hidden binary — resides as /system/bin/debugs — that runs with root privileges and communicates over unencrypted channels with three hosts. According to the researchers, this privileged binary not only exposes user-specific information to MITM attackers but also acts as a rootkit, potentially allowing
Apple Mac OSX Zero-Day Bug Allows Hackers to Install RootKit Malware

Apple Mac OSX Zero-Day Bug Allows Hackers to Install RootKit Malware

June 02, 2015Swati Khandelwal
A zero-day software vulnerability discovered deep in the firmware of many Apple computers could allows an attacker to modify the system's BIOS and install a rootkit , potentially gaining complete control of the victim's Mac. The critical vulnerability, discovered by well-known OS X security researcher Pedro Vilaca, affects Mac computers shipped before mid-2014 that are allowed to go into sleep mode. While studying Mac security, Vilaca found that it's possible to tamper with Apple computer's UEFI (unified extensible firmware interface) code. UEFI is a low-level firmware designed to improve upon computer's BIOS, which links a computer's hardware and operating system at startup and is typically not accessible to users. But… Vilaca found that the machine's UEFI code can be unlocked after a computer is put to sleep and then brought back up. " And you ask, what the hell does this mean? " Vilaca wrote in a blog post published Friday. " It means th
Rootkit Hunter - Rootkit scanning tool

Rootkit Hunter - Rootkit scanning tool

September 10, 2011Mohit Kumar
Rootkit Hunter - Rootkit scanning tool Rootkit scanner is scanning tool to ensure you for about 99.9%* you're clean of nasty tools. This tool scans for rootkits, backdoors and local exploits by running tests like: - MD5 hash compare - Look for default files used by rootkits - Wrong file permissions for binaries - Look for suspected strings in LKM and KLD modules - Look for hidden files - Optional scan within plaintext and binary files Download Rootkit Hunter
Rootkit.com database leaked by Anonymous Hackers, Available for Download !

Rootkit.com database leaked by Anonymous Hackers, Available for Download !

February 10, 2011Mohit Kumar
On February 6, 2011, as part of their attack on HBGary , the Anonymous group social engineered administrator of rootkit.com , Jussi Jaakonaho, to gain root access to rootkit.com . The entire MySQL database backup was then released by Anonymous and announced using HBGary's CEO Twitter account, @aaronbarr   : Sup, here's rootkit.com MySQL Backup https://stfu.cc/rootkit_com_mysqlbackup_02_06_11.gz #hbgary #rootkit #anonymous.   The table pic shown is the list of accounts found in rootkit.com MySQL database backup with passwords in cleartext.
Beware of Zeus Banking Trojan Signed With Valid Digital Signature

Beware of Zeus Banking Trojan Signed With Valid Digital Signature

April 06, 2014Anonymous
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
Uroburos Rootkit: Most sophisticated 3-year-old Russian Cyber Espionage Campaign

Uroburos Rootkit: Most sophisticated 3-year-old Russian Cyber Espionage Campaign

March 05, 2014Swati Khandelwal
The Continuous Growth of spyware, their existence, and the criminals who produce & spread them are increasing tremendously. It's difficult to recognize spyware as it is becoming more complex and sophisticated with time, so is spreading most rapidly as an Internet threat. Recently, The security researchers have unearthed a very complex and sophisticated piece of malware that was designed to steal confidential data and has ability able to capture network traffic. The Researchers at the German security company G Data Software , refer the malware as Uroburos , named after an ancient symbol depicting a serpent or dragon eating its own tail, and in correspondence with a string ( Ur0bUr()sGotyOu# ) lurking deep in the malware's code.  The researchers claimed that the malware may have been active for as long as three years before being discovered and appears to have been created by Russian developers. Uroburos is a rootkit designed to steal data from secure facilit
Chinese Hackers Used a New Rootkit to Spy on Targeted Windows 10 Users

Chinese Hackers Used a New Rootkit to Spy on Targeted Windows 10 Users

October 01, 2021Ravie Lakshmanan
A formerly unknown Chinese-speaking threat actor has been linked to a long-standing evasive operation aimed at South East Asian targets as far back as July 2020 to deploy a kernel-mode rootkit on compromised Windows systems. Attacks mounted by the hacking group, dubbed  GhostEmperor  by Kaspersky, are also said to have used a "sophisticated multi-stage malware framework" that allows for providing persistence and remote control over the targeted hosts. The Russian cybersecurity firm called the rootkit Demodex , with infections reported across several high-profile entities in Malaysia, Thailand, Vietnam, and Indonesia, in addition to outliers located in Egypt, Ethiopia, and Afghanistan. "[Demodex] is used to hide the user mode malware's artefacts from investigators and security solutions, while demonstrating an interesting undocumented loading scheme involving the kernel mode component of an open-source project named  Cheat Engine  to bypass the Windows Driver Sig
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