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State-sponsored hackers affiliated with Russia are behind a new series of intrusions using a previously undocumented implant to compromise systems in the U.S., Germany, and Afghanistan. Cisco Talos attributed the attacks to the  Turla  advanced persistent threat (APT) group, coining the malware "TinyTurla" for its limited functionality and efficient coding style that allows it to go undetected. Attacks incorporating the backdoor are believed to have occurred since 2020. "This simple backdoor is likely used as a second-chance backdoor to maintain access to the system, even if the primary malware is removed," the researchers  said . "It could also be used as a second-stage dropper to infect the system with additional malware." Furthermore, TinyTurla can upload and execute files or exfiltrate sensitive data from the infected machine to a remote server, while also polling the command-and-control (C2) station every five seconds for any new commands. Also k...

The operators behind the BlackRock mobile malware have surfaced back with a new Android banking trojan called  ERMAC  that targets Poland and has its roots in the infamous Cerberus malware, according to the latest research. "The new trojan already has active distribution campaigns and is targeting 378 banking and wallet apps with overlays," ThreatFabric's CEO Cengiz Han Sahin said in an emailed statement. First campaigns involving ERMAC are believed to have begun in late August under the guise of the Google Chrome app. Since then, the attacks have expanded to include a range of apps such as banking, media players, delivery services, government applications, and antivirus solutions like  McAfee . Almost fully based on the notorious banking trojan  Cerberus , the Dutch cybersecurity firm's findings come from forum posts made by an actor named DukeEugene last month on August 17, inviting prospective customers to "rent a new android botnet with wide functionalit...

DMARC  is a global standard for email authentication. It allows senders to verify that the email really comes from whom it claims to come from. This helps curb spam and phishing attacks, which are among the most prevalent cybercrimes of today. Gmail, Yahoo, and many other large email providers have implemented DMARC and praised its benefits in recent years. If your company's domain name is bankofamerica.com, you do not want a cyber attacker to be able to send emails under that domain. This puts your brand reputation at risk and could potentially spread financial malware. The DMARC standard prevents this by checking whether emails are sent from an expected IP address or domain. It specifies how domains can be contacted if there are authentication or migration issues and provides forensic information so senders can monitor email traffic and quarantine suspicious emails. What is a Phishing Attack? Phishing is an attempt by cybercriminals to trick victims into giving away sensitive...

Cybersecurity researchers have charted the evolution of Jupyter, a .NET infostealer known for singling out healthcare and education sectors, which make it exceptional at defeating most endpoint security scanning solutions. The new delivery chain, spotted by  Morphisec  on September 8, underscores that the malware has not just continued to remain active but also showcases "how threat actors continue to develop their attacks to become more efficient and evasive." The Israeli company said it's currently investigating the scale and scope of the attacks. First  documented  in November 2020, Jupyter (aka Solarmarker) is likely Russian in origin and primarily targets Chromium, Firefox, and Chrome browser data, with additional capabilities that allow for full backdoor functionality, including features to siphon information and upload the details to a remote server and download and execute further payloads. Forensic evidence gathered by Morphisec shows that multiple versi...

Google on Friday rolled out an emergency security patch to its Chrome web browser to address a security flaw that's known to have an exploit in the wild. Tracked as  CVE-2021-37973 , the vulnerability has been described as  use after free  in  Portals API , a web page navigation system that enables a page to show another page as an inset and "perform a seamless transition to a new state, where the formerly-inset page becomes the top-level document." Clément Lecigne of Google Threat Analysis Group (TAG) has been credited with reporting the flaw. Additional specifics pertaining to the weakness have not been disclosed in light of active exploitation and to allow a majority of the users to apply the patch, but the internet giant said it's "aware that an exploit for CVE-2021-37973 exists in the wild." The update arrives a day after Apple moved to close an actively exploited security hole in older versions of iOS and macOS ( CVE-2021-30869 ), which the TAG no...

Network security company SonicWall has addressed a critical security vulnerability affecting its Secure Mobile Access (SMA) 100 series appliances that can permit remote, unauthenticated attackers to gain administrator access on targeted devices remotely. Tracked as  CVE-2021-20034 , the arbitrary file deletion flaw is rated 9.1 out of a maximum of 10 on the CVSS scoring system, and could allow an adversary to bypass path traversal checks and delete any file, causing the devices to reboot to factory default settings. "The vulnerability is due to an improper limitation of a file path to a restricted directory potentially leading to arbitrary file deletion as 'nobody,'" the San Jose-based firm  noted  in an advisory published Thursday. "There is no evidence that this vulnerability is being exploited in the wild." SonicWall credited Wenxu Yin of Alpha Lab, Qihoo 360, with reporting the security shortcoming, which impacts SMA 100 Series — SMA 200, SMA 210, ...

A new advanced persistent threat (APT) has been behind a string of attacks against hotels across the world, along with governments, international organizations, engineering companies, and law firms. Slovak cybersecurity firm ESET codenamed the cyber espionage group  FamousSparrow , which it said has been active since at least August 2019, with victims located across Africa, Asia, Europe, the Middle East, and the Americas, spanning several countries such as Burkina Faso, Taiwan, France, Lithuania, the U.K., Israel, Saudi Arabia, Brazil, Canada, and Guatemala. Attacks mounted by the group involve exploiting known vulnerabilities in server applications such as SharePoint and Oracle Opera, in addition to the  ProxyLogon  remote code execution vulnerability in Microsoft Exchange Server that came to light in March 2021, making it the  latest threat actor  to have had access to the exploit before details of the flaw became public. According to ESET, intrusions ex...

A new as-yet unpatched weakness in Apple's iCloud Private Relay feature could be circumvented to leak users' true IP addresses from iOS devices running the latest version of the operating system. Introduced as a beta with iOS 15, which was officially released this week,  iCloud Private Relay  aims to improve anonymity on the web by employing a dual-hop architecture that effectively shields users' IP address, location, and DNS requests from websites and network service providers. It achieves this by routing users' internet traffic on the Safari browser through two proxies in order to mask who's browsing and where that data is coming from in what could be viewed as a simplified version of Tor.  However, the feature is available only to iCloud+ subscribers running iOS 15 or macOS 12 Monterey and above. "If you read the IP address from an HTTP request received by your server, you'll get the IP address of the egress proxy," FingerprintJS researcher Se...

Cybersecurity researchers have disclosed a novel technique adopted by a threat actor to deliberately evade detection with the help of malformed digital signatures of its malware payloads. "Attackers created malformed code signatures that are treated as valid by Windows but are not able to be decoded or checked by OpenSSL code — which is used in a number of security scanning products," Google Threat Analysis Group's Neel Mehta  said  in a write-up published on Thursday. The new mechanism was observed to be exploited by a notorious family of unwanted software known as  OpenSUpdater  that's used to download and install other suspicious programs on compromised systems. Most targets of the campaign are users located in the U.S. who are prone to downloading cracked versions of games and other grey-area software. The findings come from a set of OpenSUpdater  samples   uploaded  to VirusTotal at least since mid-August. While adversaries in the past ...

Networking equipment maker Cisco Systems has rolled out patches to address three critical security vulnerabilities in its IOS XE network operating system that remote attackers could potentially abuse to execute arbitrary code with administrative privileges and trigger a denial-of-service (DoS) condition on vulnerable devices. The list of three flaws is as follows - CVE-2021-34770  (CVSS score: 10.0) - Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability CVE-2021-34727  (CVSS score: 9.8) - Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability CVE-2021-1619  (CVSS score: 9.8) - Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability The most severe of the issues is CVE-2021-34770, which Cisco calls a "logic error" that occurs during the processing of  CAPWAP  (Control And Provisioning of Wireless Access Points) packets that enable a central wireless Controller to manage a...

Apple on Thursday released security updates to fix multiple security vulnerabilities in older versions of  iOS  and  macOS  that it says have been detected in exploits in the wild, in addition to expanding patches for a previously plugged security weakness abused by NSO Group's Pegasus surveillance tool to target iPhone users. Chief among them is CVE-2021-30869, a type confusion flaw that resides in the kernel component  XNU  developed by Apple that could cause a malicious application to execute arbitrary code with the highest privileges. The Cupertino-based tech giant said it addressed the bug with improved state handling. Google's Threat Analysis Group, which is credited with reporting the flaw, said it detected the vulnerability being "used in conjunction with a N-day remote code execution targeting WebKit." Two other flaws include  CVE-2021-30858 and CVE-2021-30860 , both of which were resolved by the company earlier this month following disc...

An unpatched design flaw in the implementation of Microsoft Exchange's Autodiscover protocol has resulted in the leak of approximately 100,000 login names and passwords for Windows domains worldwide. "This is a severe security issue, since if an attacker can control such domains or has the ability to 'sniff' traffic in the same network, they can capture domain credentials in plain text (HTTP basic authentication) that are being transferred over the wire," Guardicore's Amit Serper  said  in a technical report. "Moreover, if the attacker has DNS-poisoning capabilities on a large scale (such as a nation-state attacker), they could systematically syphon out leaky passwords through a large-scale DNS poisoning campaign based on these Autodiscover TLDs [top-level domains]." The Exchange  Autodiscover  service enables users to configure applications such as Microsoft Outlook with minimal user input, allowing just a combination of email addresses and pas...

Security researchers have disclosed an unpatched weakness in Microsoft Windows Platform Binary Table (WPBT) affecting all Windows-based devices since Windows 8 that could be potentially exploited to install a rootkit and compromise the integrity of devices. "These flaws make every Windows system vulnerable to easily-crafted attacks that install fraudulent vendor-specific tables," researchers from Eclypsium  said  in a report published on Monday. "These tables can be exploited by attackers with direct physical access, with remote access, or through manufacturer supply chains. More importantly, these motherboard-level flaws can obviate initiatives like  Secured-core  because of the ubiquitous usage of  ACPI  [Advanced Configuration and Power Interface] and WPBT." WPBT, introduced with Windows 8 in 2012, is a  feature  that enables "boot firmware to provide Windows with a platform binary that the operating system can execute."  In other wor...