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Hardly two month ago we reported about the first widely spread Android Bootkit malware , dubbed as ' Oldboot.A ', which infected more than 500,000 Smartphone users worldwide with Android operating system in last eight months, especially in China. Oldboot is a piece of Android malware that's designed to re-infect Mobile devices even after a thorough cleanup. It resides in the memory of infected devices;  It modify the devices' boot partition and booting script file to launch system service and extract malicious application during the early stage of system's booting. Yet another alarming report about Oldboot malware has been released by the Chinese Security Researchers from ' 360 Mobile Security '. They have discovered a new variant of the Oldboot family, dubbed as ' Oldboot.B ', designed exactly as Oldboot.A, but new variant has advance stealth techniques. Especially, the defense against with antivirus software, malware analyzer, and automatic a...

Unknown malware presents a significant cybersecurity threat and can cause serious damage to organizations and individuals alike. When left undetected, malicious code can gain access to confidential information, corrupt data, and allow attackers to gain control of systems. Find out how to avoid these circumstances and detect unknown malicious behavior efficiently.  Challenges of new threats' detection While known malware families are more predictable and can be detected more easily, unknown threats can take on a variety of forms, causing a bunch of challenges for their detection: Malware developers use polymorphism, which enables them to modify the malicious code to generate unique variants of the same malware.  There is malware that is still not identified and doesn't have any rulesets for detection. Some threats can be Fully UnDetectable (FUD) for some time and challenge perimeter security.  The code is often encrypted, making it difficult to detect by signature-...

Over the past few months, hundreds of Android users have been complaining online of a new piece of mysterious malware that hides on the infected devices and can reportedly reinstall itself even after users delete it, or factory reset their devices. Dubbed Xhelper , the malware has already infected more than 45,000 Android devices in just the last six months and is continuing to spread by infecting at least 2,400 devices on an average each month, according to the latest report published today by Symantec. Here below, I have collected excerpts from some comments that affected users shared on the online forums while asking for how to remove the Xhelper Android malware: "xhelper regularly reinstalls itself, almost every day!" "the 'install apps from unknown sources' setting turns itself on." "I rebooted my phone and also wiped my phone yet the app xhelper came back." "Xhelper came pre-installed on the phone from China." ...

Iran-affiliated threat actors have been linked to a new custom malware that's geared toward IoT and operational technology (OT) environments in Israel and the United States. The malware has been codenamed IOCONTROL by OT cybersecurity company Claroty, highlighting its ability to attack IoT and supervisory control and data acquisition (SCADA) devices such as IP cameras, routers, programmable logic controllers (PLCs), human-machine interfaces (HMIs), firewalls, and other Linux-based IoT/OT platforms. "While the malware is believed to be custom-built by the threat actor, it seems that the malware is generic enough that it is able to run on a variety of platforms from different vendors due to its modular configuration," the company said . The development makes IOCONTROL the tenth malware family to specifically single out Industrial Control Systems (ICS) after Stuxnet, Havex, Industroyer (aka CrashOverride), Triton (aka Trisis), BlackEnergy2, Industroyer2, PIPEDREAM (a...

Security researchers have discovered two separate malware campaigns, one of which is distributing the Ursnif data-stealing trojan and the GandCrab ransomware in the wild, whereas the second one is only infecting victims with Ursnif malware. Though both malware campaigns appear to be a work of two separate cybercriminal groups, we find many similarities in them. Both attacks start from phishing emails containing an attached Microsoft Word document embedded with malicious macros and then uses Powershell to deliver fileless malware. Ursnif is a data-stealing malware that typically steals sensitive information from compromised computers with an ability to harvest banking credentials, browsing activities, collect keystrokes, system and process information, and deploy additional backdoors. Discovered earlier last year, GandCrab is a widespread ransomware threat that, like every other ransomware in the market, encrypts files on an infected system and insists victims to pay a ransom ...

Security researchers have discovered a new campaign targeting energy companies in Western Europe with a sophisticated malware that almost goes to great lengths in order to remain undetected while targeting energy companies. Researchers from SentinelOne Labs discovered the malware, which has already infected at least one European energy company, is so sneaky and advanced that it is likely believed to be the work of a wealthy nation. The malware, dubbed ' SFG ', contains about 280 kilobytes of code, featuring a vast arsenal of tools rarely seen in ordinary malware samples. It takes " extreme measures " to cleverly and stealthily evade a large number of security defenses before it drops its payload. The malware dismantles antiviruses processes one-by-one until the malware is finally safe to uninstall them all. It also encrypts key features of its code so that it could not be discovered and analyzed. It'll not execute itself if it senses it's being run in...

Remember xHelper? A mysterious piece of Android malware that re-installs itself on infected devices even after users delete it or factory reset their devices—making it nearly impossible to remove. xHelper reportedly infected over 45,000 devices last year, and since then, cybersecurity researchers have been trying to unfold how the malware survives factory reset and how it infected so many devices in the first place. In a blog post published today, Igor Golovin, malware analyst at Kaspersky, finally solved the mystery by unveiling technical details on the persistence mechanism used by this malware, and eventually also figured out how to remove xHelper from an infected device completely. As the initial attack vector and for distribution, the malware app disguises itself as a popular cleaner and speed optimization app for smartphones — affecting mostly users in Russia (80.56%), India (3.43%), and Algeria (2.43%). "But in reality, there is nothing useful about it: af...

With the ongoing conflict in Eurasia, cyberwarfare is inevitably making its presence felt. The fight is not only being fought on the fields. There is also a big battle happening in cyberspace. Several cyber-attacks have been reported over the past months. Notably, cyber attacks backed by state actors are becoming prominent. There have been reports of a rise of ransomware and other malware attacks such as  Cyclops Blink ,  HermeticWiper , and  BlackCat . These target businesses as well as government institutions and nonprofit organizations. There have been cases of several attempts to shut down online communications and IT infrastructure. The ongoing list of  significant cyber incidents  curated by the Center for Strategic and International Studies (CSIS) shows that the number of major incidents in January 2022 is 100% higher compared to the same period in the previous year. With the recent activities in cyberspace impacted by the emergence of the geopolitical...

The US-CERT has released a joint technical alert from the DHS and the FBI, warning about two newly identified malware being used by the prolific North Korean APT hacking group known as Hidden Cobra. Hidden Cobra, often known as Lazarus Group and Guardians of Peace, is believed to be backed by the North Korean government and known to launch attacks against media organizations, aerospace, financial and critical infrastructure sectors across the world. The group was even associated with the WannaCry ransomware menace that last year shut down hospitals and businesses worldwide. It is reportedly also linked to the 2014 Sony Pictures hack , as well as the SWIFT Banking attack in 2016. Now, the Department of Homeland Security (DHS) and the FBI have uncovered two new pieces of malware that Hidden Cobra has been using since at least 2009 to target companies working in the media, aerospace, financial, and critical infrastructure sectors across the world. The malware Hidden Cobra is...

Over 1,500 Android devices have been infected by a new strain of Android banking malware called ToxicPanda that allows threat actors to conduct fraudulent banking transactions. "ToxicPanda's main goal is to initiate money transfers from compromised devices via account takeover (ATO) using a well-known technique called on-device fraud ( ODF )," Cleafy researchers Michele Roviello, Alessandro Strino, and Federico Valentini said in a Monday analysis. "It aims to bypass bank countermeasures used to enforce users' identity verification and authentication, combined with behavioral detection techniques applied by banks to identify suspicious money transfers." ToxicPanda is believed to be the work of a Chinese-speaking threat actor, with the malware sharing foundational similarities with another Android malware dubbed TgToxic , which can steal credentials and funds from crypto wallets. TgToxic was documented by Trend Micro in early 2023. A majority of the com...

Hackers targeted at least 8 ATMs in Russia and stole $800,000 in a single night, but the method used by the intruders remained a complete mystery with CCTV footage just showing a lone culprit walking up to the ATM and collecting cash without even touching the machine. Even the affected banks could not find any trace of malware on its ATMs or backend network or any sign of an intrusion. The only clue the unnamed bank's specialists found from the ATM's hard drive was — two files containing malware logs. The log files included the two process strings containing the phrases: "Take the Money Bitch!" and "Dispense Success." This small clue was enough for the researchers from the Russian security firm Kaspersky, who have been investigating the ATM heists, to find malware samples related to the ATM attack. In February, Kaspersky Labs reported that attackers managed to hit over 140 enterprises, including banks, telecoms, and government organizations, in th...

More than half a million routers and storage devices in dozens of countries have been infected with a piece of highly sophisticated IoT botnet malware, likely designed by Russia-baked state-sponsored group. Cisco's Talos cyber intelligence unit have discovered an advanced piece of IoT botnet malware, dubbed VPNFilter , that has been designed with versatile capabilities to gather intelligence, interfere with internet communications, as well as conduct destructive cyber attack operations. The malware has already infected over 500,000 devices in at least 54 countries, most of which are small and home offices routers and internet-connected storage devices from Linksys, MikroTik, NETGEAR, and TP-Link. Some network-attached storage (NAS) devices known to have been targeted as well. VPNFilter is a multi-stage, modular malware that can steal website credentials and monitor industrial controls or SCADA systems, such as those used in electric grids, other infrastructure and factori...

Rapidly growing, insecure internet-connected devices are becoming albatross around the necks of individuals and organizations with malware authors routinely hacking them to form botnets that can be further used as weapons in DDoS and other cyber attacks. But now finding malicious servers, hosted by attackers, that control botnet of infected machines gets a bit easier. Thanks to Shodan and Recorded Future. Shodan and Recorded Future have teamed up and launched Malware Hunter – a crawler that scans the Internet regularly to identify botnet command and control (C&C) servers for various malware and botnets. Command-and-control servers ( C&C servers ) are centralized machines that control the bots ( computers, smart appliances or smartphones ), typically infected with Remote Access Trojans or data-stealing malware, by sending commands and receiving data. Malware Hunter results have been integrated into Shodan – a search engine designed to gather and list information abo...

Security researchers have discovered a new strain of malware that makes use of extraordinary measures to evade detection and analysis, making the computer it infects unusable. Dubbed Rombertik , which is "unique" among other self-destructing malware samples due to its unique evasion techniques. As soon as any analysis tool is detected, Rombertik attempts to delete the device's Master Boot Record (MBR) and home directories, making the machine constantly restart. Rombertik is a complex piece of spyware designed to "indiscriminately" collect everything a user does online in order to obtain victim's login credentials and other confidential information. Infects users via Phishing campaign: Rombertik typically gets installed on vulnerable machines when users click on malicious attachments included in phishing emails, Cisco security researchers Ben Baker and Alex Chiu said in a blog post  Monday. Once loaded into the system, Rombertik first runs...