Security Affairs

JULY 4, 2019

The peculiarity of this new piece of malware is the ability to communicate with C2 servers via DNS over HTTPS ( DoH ). The DoH protocol was a new standard proposed in October 2018 and it is currently supported by several publicly available DNS servers. ” states the analysis. ” states the analysis. Pierluigi Paganini.

DNS 107

DNS Malware Advertising DDOS 107

Krebs on Security

JANUARY 22, 2019

Your Web browser knows how to find a Web site name like example.com thanks to the global Domain Name System (DNS), which serves as a kind of phone book for the Internet by translating human-friendly Web site names (example.com) into numeric Internet address that are easier for computers to manage. ” SAY WHAT? domaincontrol.com.

DNS 247

DNS Internet Internet Computers and Electronics 247

Krebs on Security

DECEMBER 8, 2020

Nine of the 58 security vulnerabilities addressed this month earned Microsoft’s most-dire “critical” label, meaning they can be abused by malware or miscreants to seize remote control over PCs without any help from users.

DNS 312

DNS Backups Malware Software 312

Krebs on Security

MARCH 2, 2020

A large number of French critical infrastructure firms were hacked as part of an extended malware campaign that appears to have been orchestrated by at least one attacker based in Morocco, KrebsOnSecurity has learned.

DNS 276

DNS Penetration Testing Malware Hacking 276

Security Affairs

JULY 14, 2020

on the CVSS scale and affects Windows Server versions 2003 to 2019. The SigRed flaw was discovered by Check Point researcher Sagi Tzaik and impacts Microsoft Windows DNS. An attacker could exploit the SigRed vulnerability by sending specially-crafted malicious DNS queries to a Windows DNS server.

DNS 102

DNS Advertising Malware Hacking 102

Security Affairs

JANUARY 14, 2021

Malware researchers from ESET uncovered an ongoing surveillance campaign, dubbed Operation Spalax , against Colombian entities exclusively. The attacks share some similarities with other campaigns targeting Colombian entities, in particular a campaign detailed in February 2019, by QiAnXin. Pierluigi Paganini.

Malware 143

Malware Surveillance Phishing Government 143

Security Affairs

SEPTEMBER 4, 2019

Cyber Defense Magazine September 2019 Edition has arrived. In addition, we’re shooting for 7x24x365 uptime as we continue to scale with improved Web App Firewalls, Content Deliver Networks (CDNs) around the Globe, Faster and More Secure DNS and CyberDefenseMagazineBackup.com up and running as an array of live mirror sites.

DNS 102

DNS Advertising Firewall Mobile 102

Krebs on Security

FEBRUARY 9, 2021

Nine of the 56 vulnerabilities earned Microsoft’s most urgent “critical” rating, meaning malware or miscreants could use them to seize remote control over unpatched systems with little or no help from users. CVE-2021-24078 earned a CVSS Score of 9.8, which is about as dangerous as they come.

DNS 339

DNS Backups Software Phishing 339

Security Affairs

JULY 1, 2019

Cyber Defense Magazine July 2019 Edition has arrived. Cyber Defense Magazine July 2019 Edition has arrived. The post Cyber Defense Magazine – July 2019 has arrived. We hope you enjoy this month’s edition…packed with over 168 pages of excellent content. Please read it and share it with your friends.

DNS 103

DNS Advertising Firewall Mobile 103

Security Affairs

JULY 15, 2020

Security researchers discovered another malware family delivered through tax software that some businesses operating in China are required to install. Security researchers at Trustwave have discovered another malware family delivered through tax software that Chinese banks require companies operating in the country to install.

Software 132

Software Malware Banking Advertising 132

Security Affairs

SEPTEMBER 26, 2024

In July, Cisco fixed an actively exploited NX-OS zero-day that was exploited to install previously unknown malware as root on vulnerable switches. The threat actors targeted insecure software update mechanisms to install malware on macOS and Windows victim machines. reads the report published by Sygnia.

Internet 136

Internet Internet DNS Telecommunications 136

Security Affairs

APRIL 24, 2019

Iran-linked OilRig cyberespionage group is using the reconnaissance malware Karkoff along with DNSpionage in recent campaigns. Iran-linked OilRig cyberespione group is using the reconnaissance malware Karkoff along with DNSpionage in recent campaigns. ” reads the analysis published by Talos. ” continues the experts.

Malware 99

Malware DNS Advertising Hacking 99

SecureList

APRIL 24, 2023

Introduction We introduced Tomiris to the world in September 2021, following our investigation of a DNS-hijack against a government organization in the Commonwealth of Independent States (CIS). We hypothesize that the general aim is to provide operators with “full-spectrum malware” in order to evade security products.

Malware 134

Malware DNS Government Software 134

Security Affairs

APRIL 8, 2019

Kaspersky Lab reported that hundreds of users have been targeted with malware over the past month as part of a recent Roaming Mantis campaign. Security experts at Kaspersky Lab reported that hundreds of users have been targeted with malware over the past month as part of a new campaign associated with Roaming Mantis gang.

DNS 111

DNS Mobile Phishing Malware 111

Security Affairs

JANUARY 24, 2019

A still ongoing spam campaign that has been active during the last months has been distributing the Redaman banking malware. Experts at Palo Alto Networks continue to monitor an ongoing spam campaign that has been distributing the Redaman banking malware. We expect to discover new Redaman samples as 2019 progresses ,”.

Banking 110

Banking Malware Advertising DNS 110

Security Affairs

DECEMBER 18, 2019

Security experts recently found notable malware activity affecting devices running Linux that is associated with the Momentum Botnet. Malware researchers from Trend Micro recently observed notable malware activity affecting devices running Linux that is associated with the Momentum Botnet. ” concludes the analysis.

Malware 104

Malware DDOS Advertising DNS 104

SecureList

OCTOBER 18, 2021

During the live program, we presented our research into the Lyceum group (also known as Hexane), which was first exposed by Secureworks in 2019. Our investigation into Lyceum has shown that the group has evolved its arsenal over the years and shifted its usage from the previously documented.NET malware to new versions, written in C++.

DNS 137

DNS Telecommunications Malware Accountability 137

SecureList

DECEMBER 18, 2020

For instance, before making the first internet connection to its C2s, the Sunburst malware lies dormant for a long period, of up to two weeks, which prevents an easy detection of this behavior in sandboxes. In the initial phases, the Sunburst malware talks to the C&C server by sending encoded DNS requests. avsvmcloud[.]com”

DNS 75

DNS Telecommunications Malware Encryption 75

Cisco Security

AUGUST 12, 2021

For several years, Cisco Secure provided DNS visibility and architecture intelligence with Cisco Umbrella and Cisco Umbrella Investigate ; and automated malware analysis and threat intelligence with Cisco Secure Malware Analytics (Threat Grid) , backed by Cisco Talos Intelligence and Cisco SecureX. Malware Analysis.

DNS 137

DNS Firewall Malware Phishing 137

Security Affairs

FEBRUARY 19, 2019

Over the last few days, a phishing campaign from DHL and entitled “ DHL Shipment Notification ” has been targeted users worldwide distribution the Muncy malware. Now, the malware is targeting user’s worldwide and has been spread via phishing campaigns. The process flow diagram below shown how the malware works.

Malware 103

Malware Phishing DNS Engineering 103

SecureList

JUNE 1, 2023

The oldest traces of infection that we discovered happened in 2019. Forensic methodology It is important to note, that, although the malware includes portions of code dedicated specifically to clear the traces of compromise, it is possible to reliably identify if the device was compromised. net backuprabbit[.]com com cloudsponcer[.]com

Malware 145

Malware Backups Mobile DNS 145

Security Affairs

OCTOBER 15, 2019

The group has been observed using new tactics, techniques, and procedures (TTPs), it is also using updated malware to evade detection. The Rocke group was also observed exploiting the CVE-2019-3396 flaw in Confluence servers to get remote code execution and deliver the miners.

Cybercrime 96

Cybercrime DNS Malware Advertising 96

Krebs on Security

AUGUST 30, 2019

On August 21, multiple United Rental customers reported receiving invoice emails with booby-trapped links that led to a malware download for anyone who clicked. While phony invoices are a common malware lure, this particular campaign sent users to a page on United Rentals’ own Web site (unitedrentals.com). Image: APWG.

Phishing 219

Phishing Marketing Accountability DNS 219

Security Affairs

JULY 13, 2019

The campaign uncovered by Avast aimed at silently modifying the Brazilian users’ Domain Name System (DNS) settings to redirect victims to malicious websites mimicking legitimate ones. “ Malware then guesses routers’ passwords , which new research from Avast shows are often weak. ” reads a blog post published by Avast.

DNS 108

DNS Passwords Advertising Banking 108

Security Affairs

MARCH 20, 2020

Most of APT28s’ campaigns leveraged spear-phishing and malware-based attacks, the recent mass scanning activity represents a change in the modus operandi of the group. “This report aims to shed light on some of Pawn Storm’s attacks that did not use malware in the initial stages. ” continues the report. .”

Phishing 145

Phishing Accountability Advertising DNS 145

Security Affairs

JULY 24, 2024

The China-linked APT group Daggerfly (aka Evasive Panda or Bronze Highland) has significantly updated its malware arsenal, adding a new malware family based on the MgBot framework and an updated Macma macOS backdoor. “ The APT group was spotted using the malware families in attacks against Taiwanese organizations and a U.S.

Malware 139

Malware DNS Hacking Information Security 139

Security Affairs

JUNE 18, 2020

They use DNS tunneling for stealthier C&C communications, and place execution guardrails on the malicious components to hide the malware from security researchers.” Experts also observed attackers using a DNS downloader that was designed for long-term, covert access to the target machine.

DNS 131

DNS Advertising Spyware Software 131

eSecurity Planet

FEBRUARY 16, 2021

Malware, short for “malicious software,” is any unwanted software on your computer that, more often than not, is designed to inflict damage. Since the early days of computing, a wide range of malware types with varying functions have emerged. Best Practices to Defend Against Malware. Jump ahead: Adware. RAM scraper.

Malware 105

Malware Adware Spyware Antivirus 105

Hacker Combat

JULY 5, 2021

These malicious software variants that are believed to have been in existence since 2019 have been associated with various attacks against enterprise organizations, CD Projekt Red, and the developer of Cyberpunk 2077. Further, it also matches the two variants in how the malware executes file encryption and secures command-line disputes.

Ransomware 133

Ransomware DNS Software Encryption 133

Security Affairs

AUGUST 20, 2021

Mozi is an IoT botnet that borrows the code from Mirai variants and the Gafgyt malware , it appeared on the threat landscape in late 2019. According to the researchers, in the last months of 2019, the botnet was mainly involved in DDoS attacks. .”

IoT 114

IoT DNS Manufacturing Firmware 114

Security Affairs

NOVEMBER 24, 2020

Crooks were able to trick GoDaddy staff into handing over control of crypto-biz domain names in a classic DNS hijacking attack. Crooks were able to hijack traffic and email to various cryptocurrency-related websites as a result of a DNS hijacking attack on domains managed by GoDaddy. SecurityAffairs – hacking, DNS hijacking).

Social Engineering 111

Social Engineering Engineering DNS Accountability 111

Krebs on Security

FEBRUARY 24, 2023

The Mylobot malware includes more than 1,000 hard-coded and encrypted domain names, any one of which can be registered and used as control networks for the infected hosts. The only experience listed for Khafagy prior to the TikTok job is labeled “Marketing” at “Confidential,” from February 2014 to October 2019.

Accountability 269

Accountability Advertising Marketing Malware 269

Security Affairs

MARCH 16, 2021

Experts noticed that the malware also downloads more shell scripts that retrieve brute-forcers that could be used to target devices protected with weak passwords. “The attacks are still ongoing at the time of this writing. “The IoT realm remains an easily accessible target for attackers.

Wireless 142

Wireless IoT DNS VPN 142

Security Affairs

JULY 23, 2019

The attackers demonstrated an increasing level of sophistication across the years, they used custom-malware and various exploits in their attacks. “Second, we identified a previously undocumented malware family with strong links to the Ke3chang group – a backdoor we named Okrum. ” reads the report published by ESET.

DNS 110

DNS Malware Advertising Manufacturing 110

Security Affairs

OCTOBER 28, 2020

According to a new report published by researchers from security firm Netscout , TrickBot’s operators have started to use a new variant of their malware in an attempt to Linux systems and expand the list of its targets. “Often delivered as part of a zip, this malware is a lightweight Linux backdoor.

DNS 111

DNS Banking Advertising IoT 111

Security Affairs

OCTOBER 5, 2020

The experts are monitoring the Mirai-based botnet since November 2019 and observed it exploiting two Tenda router 0-day vulnerabilities to spread a Remote Access Trojan (RAT). ” When the botnet was first detected in 2019, experts noticed it was exploiting the Tenda zero-day flaw tracked as CVE-2020-10987.

IoT 145

IoT Firmware Advertising DNS 145

Security Affairs

DECEMBER 12, 2019

” The GALLIUM threat actor is active, but its activity was more intense between 2018 and mid-2019. link] — bk (Ben K) (@bkMSFT) December 12, 2019. Experts pointed out that GALLIUM threat actors were using common versions of malware and publicly available tools with a few changes to evade detection.

Telecommunications 97

Telecommunications DNS Malware Advertising 97