Krebs on Security

MARCH 9, 2021

Ten of these earned Microsoft’s “critical” rating, meaning they can be exploited by malware or miscreants with little or no help from users. All five of the DNS bugs quashed in today’s patch batch earned a CVSS Score (danger metric) of 9.8 — almost as bad as it gets.

DNS 317

DNS Internet Internet Software 317

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 110

Malware Surveillance Phishing Government 110

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 66

DNS Advertising Firewall Mobile 66

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 67

DNS Advertising Firewall Mobile 67

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 235

DNS Internet Internet Computers and Electronics 235

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 144

DNS Firewall Phishing Mobile 144

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 278

DNS Backups Malware Software 278

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 258

DNS Penetration Testing Malware Hacking 258

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 83

Software Malware Banking Advertising 83

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 104

IoT DNS Manufacturing Firmware 104

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 68

Malware DNS Advertising Hacking 68

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 93

DNS Mobile Phishing Malware 93

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 92

DNS Telecommunications Malware Accountability 92

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 132

Ransomware DNS Software Encryption 132

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 62

Malware DDOS DNS Advertising 62

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 100

Social Engineering Engineering DNS Data breaches 100

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 85

Banking Malware Advertising DNS 85

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 65

Cybercrime DNS Malware Advertising 65

Cisco Security

MARCH 16, 2021

In fact, 63% of threats detected by Cisco Stealthwatch in 2019 were in encrypted traffic. In this blog I’ll describe two recent privacy advances—DNS over HTTPS (DoH) and QUIC—and what we’re doing to maintain visibility. Keeping your destination private: DNS over HTTPS. Until recently, DNS messages were sent in the clear.

Encryption 87

Encryption DNS Threat Detection Internet 87

eSecurity Planet

SEPTEMBER 17, 2021

Cobalt Strike Beacon Linux enables emulation of advanced attacks to a network over HTTP, HTTPS, or DNS. The malware has been renamed Vermilion. It’s a DNS-based communication that helps circumvent classic defense mechanisms that focus on HTTP traffic. The malware can configure the beacon automatically.

DNS 91

DNS Malware Software Security Awareness 91

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 105

DNS Banking Advertising IoT 105

Security Affairs

DECEMBER 19, 2022

Botnet operators use to spread the malware via cracked or pirated software and pay-per-install (PPI) schemes. Researchers believe that at least five different merchants and exchanges were used to fund the Glupteba addresses since 2019. “For this campaign we were not able to find any samples for 3 of the addresses we gathered. .

DNS 98

DNS Antivirus Cryptocurrency Software 98

SecureList

JUNE 5, 2023

Satacom downloader, also known as LegionLoader, is a renowned malware family that emerged in 2019. It is known to use the technique of querying DNS servers to obtain the base64-encoded URL in order to receive the next stage of another malware family currently distributed by Satacom.

Cryptocurrency 78

Cryptocurrency DNS Malware Encryption 78

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 302

DNS Backups Software Phishing 302

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 75

DNS Passwords Advertising Banking 75

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 134

Phishing Accountability Advertising DNS 134

Cisco Security

AUGUST 11, 2021

We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi. Defense in the real world.

Ransomware 139

Ransomware DNS Encryption Backups 139

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 126

Wireless IoT DNS VPN 126

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 81

DNS Advertising Spyware Software 81

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 65

Telecommunications DNS Malware Advertising 65

Security Affairs

NOVEMBER 1, 2021

The number of infected devices is impressive, on 2019-11-30 a trusted security partner in the US informed Qihoo 360’s Netlab Cybersecurity reported to have observed 1,962,308 unique daily active IPs from the Pink botnet targeting its systems. According to the experts, Pink is the largest botnet they have observed in the last six years.

Architecture 122

Architecture DDOS Advertising Firmware 122

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 138

IoT Firmware DNS Advertising 138

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 86

DNS Malware Advertising Manufacturing 86

Security Affairs

JULY 15, 2020

on the CVSS scale and affects Windows Server versions 2003 to 2019. Today we released an update for CVE-2020-1350 , a Critical Remote Code Execution (RCE) vulnerability in Windows DNS Server that is classified as a ‘wormable’ vulnerability and has a CVSS base score of 10.0. Non-Microsoft DNS Servers are not affected.”

DNS 59

DNS Advertising Engineering Internet 59

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 214

Phishing Marketing Accountability DNS 214

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 229

Accountability Advertising Marketing Malware 229

Security Affairs

FEBRUARY 8, 2022

Roaming Mantis is a credential theft and malware campaign that leverages smishing to distribute malicious Android apps in the format of APK files. Starting from April 2019, the campaign started using a new landing page to target iOS devices in the attempt to trick victims into installing a malicious iOS mobile configuration.

Phishing 85

Phishing DNS Malware Hacking 85