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Latest Cyber Security News
Nunavut government computer systems coming back online after cyber attack
on November 16, 2019 at 4:30 am
Nearly two weeks after the government of Nunavut was hit with a ransomware strike, its computer systems are starting to come back online. (CBC)The Nunavut government is slowly returning to normal nearly two weeks after its computer systems were paralyzed by a cyber attack. All Nunavut government computers were paralyzed on Nov. 2 when a ransomware virus entered the system. This ransom note appeared on government of Nunavut computers when users attempted to open any files. (Name withheld by request) Government didn't pay ransom The government says it refused to pay the ransom and offices were forced to rely on fax machines, paper forms and telephone calls while the system was repaired.
New NextCry Ransomware Encrypts Data on NextCloud Linux Servers
on November 16, 2019 at 12:30 am
Its name is NextCry as it was discovered on a Linux machine running Nextcloud server. Zero detection xact64, a Nextcloud user, posted on the BleepingComputer forum some details about the malware in an attempt to find a way to decrypt personal files. Although his system was backed up, the synchronization process had started to update files on a laptop with their encrypted version on the server. Looking at the malware binary, Michael Gillespie said that the threat seems new and pointed out the NextCry ransomware uses Base64 to encode the files. Nexcloud servers targeted The ransom note is in a file named “READ_FOR_DECRYPT” stating that the data is encrypted with the AES algorithm with a 256-bit key. Nextcloud’s recommendation for administrators is to upgrade their PHP packages and NGINX configuration file to the latest version.
Stealthy Malware Flies Under AV Radar with Advanced Obfuscation
on November 15, 2019 at 11:30 pm
A threat campaign active since January customizes long-used droppers to infect victim machines and lift credentials and other data from browsers, according to Cisco Talos. Cisco Talos said the wave of ongoing campaigns use custom droppers to plant information-hijacking malware such as Agent Tesla and Loki-bot into common application processes. “The adversaries use custom droppers, which inject the final malware into common processes on the victim machine,” wrote Holger Unterbrink, a researcher with Cisco Talos, a blog post about the new research. “Once infected, the malware can steal information from many popular pieces of software, including the Google Chrome, Safari and Firefox web browsers.” Unterbrink said the adversaries use injection techniques that have been employed for many years, but with new, custom capabilities that are making them difficult for anti-virus (AV) protections to detect, Unterbrink wrote. Multistage Attack Chain The dropper campaigns researchers observed work in several stages that use “obfuscation chains” to elude modern AV protections, Unterbrink said.
US Govt Recommends Vendor System Configs To Block Malware Attacks
on November 15, 2019 at 10:45 pm
The Department of Homeland Security's Cybersecurity and Infrastructure Security Agency (CISA) today reminded users and system administrators to properly configure their systems to defend against malware that can exploit improper configurations. "Doing so in addition to maintaining regular patch maintenance, will help give your systems and networks the best security possible." Malware protection guidance Besides encouraging administrators and users to properly configure their computing systems to avoid potential malware attacks, CISA also provides a list of security practices that will help drastically reduce malware risks if followed. The agency's ST18-004 security tip revised in April 2019 recommends installing and maintaining anti-malware solutions, using caution when clicking and opening links and attachments received by email, blocking pop-up advertisements to defend against malvertising, and using accounts with limited user permissions to prevent malware from spreading.
East Texas School District Suffers Ransomware Attack
on November 15, 2019 at 9:30 pm
(TNS) — Port Neches-Groves ISD, which is near Beaumont, Texas, lost access to files on all computer systems Tuesday afternoon after being attacked by ransomware, a type of cyberattack that renders files unusable then demands money for restoring access. Superintendent Mike Gonzales said the attackers were asking for a “sizable amount of money,” and that several local law enforcement agencies and cybersecurity specialists were working to get the computers up and running again. “It is sad that they would do this to a school district,” Gonzales said. Once the malware gets access to a computer or server, it encrypts the user’s files and demands a ransom in exchange for providing a key to decrypt the files. Connor Hagan of the FBI’s Houston office said email phishing campaigns are the most common malware attacks. Gonzales said the district will bounce back, despite the inconvenience from the attack.