Krebs on Security

NOVEMBER 4, 2018

Crooks who hack online merchants to steal payment card data are constantly coming up with crafty ways to hide their malicious code on Web sites. Zoobashop is also a presently hacked e-commerce site. In Internet ages past, this often meant obfuscating it as giant blobs of gibberish text that was obvious even to the untrained eye.

Antivirus 264

Antivirus Hacking Internet Internet 264

Security Affairs

JUNE 22, 2021

Experts pointed out that the number of infected systems could be far greater because data provided by AVAST are only related to systems running their antivirus solution. Communication with C&C servers is based on DNS requests and it uses a special mechanism translating DNS results to a real IP address. Pierluigi Paganini.

DNS 145

DNS Internet Internet Malware 145

Security Affairs

JULY 15, 2024

Indicators such as DNS queries to a Remmina-related domain suggest the attacker is likely a Linux-based user. “While NetScan ran on the primary Veeam backup server, antivirus (AV) protection was disabled on the virtual machine host, both through antivirus user interfaces (UI) and through the command line.”

Backups 139

Backups Ransomware Antivirus DNS 139

Security Affairs

DECEMBER 5, 2020

DeathStalker is a hack-for-hire group discovered by Kaspersky, it has been targeting organizations worldwide, mainly law firms and financial entities, since 2012. The backdoor uses multiple tricks to evade detection and leverages DNS over HTTPS (DoH) to communicate with its C2 server, using Cloudflare responders. Pierluigi Paganini.

DNS 122

DNS Phishing Encryption Antivirus 122

Security Affairs

AUGUST 31, 2022

At the time of publication, this particular file is undetected by all antivirus vendors according to VirusTotal” The Base64 encoded payload, once decrypted, is a Windows 64-bit executable (1.7MB) called “msdllupdate.exe.”. “This technique works by sending an encrypted string appended to the DNS query set as a subdomain.

Malware 98

Malware DNS Antivirus Encryption 98

Fox IT

AUGUST 11, 2022

This Saitama implant uses DNS as its sole Command and Control channel and utilizes long sleep times and (sub)domain randomization to evade detection. In May 2022, security firm Malwarebytes published a two 1 -part 2 blog about a malware sample that utilizes DNS as its sole channel for C2 communication. Introduction.

DNS 66

DNS Engineering Malware Encryption 66

Security Affairs

FEBRUARY 4, 2021

The Matryosh initially decrypts the remote hostname and uses the DNS TXT request to obtain TOR C2 and TOR proxy, then it connects with the TOR proxy. SecurityAffairs – hacking, botnet). Experts found a similarity of C2 instructions employed by the Moobot threat actor , which continues to be very active in this period.

DDOS 139

DDOS DNS Antivirus Malware 139

Security Affairs

FEBRUARY 21, 2021

SecurityAffairs – hacking, newsletter). If you want to receive the weekly Security Affairs Newsletter for free subscribe here. Pierluigi Paganini. The post Security Affairs newsletter Round 302 appeared first on Security Affairs.

Data breaches 101

Data breaches DNS Firmware Antivirus 101

Security Affairs

JUNE 9, 2022

“Network telemetry can be used to detect anomalous DNS requests, and security tools such as antivirus and endpoint detection and response (EDR) should be statically linked to ensure they are not “infected” by userland rootkits.” SecurityAffairs – hacking, Symbiote backdoor). ” concludes the report.

Malware 145

Malware DNS Antivirus Passwords 145

Security Affairs

DECEMBER 19, 2022

The experts used passive DNS records to uncover Glupteba domains and hosts and analyzed the latest set of TLS certificates used by the bot to figure out the infrastructure used by the attackers. We also recommend monitoring DNS logs and keeping the antivirus software up to date to help prevent a potential Glupteba infection.”

DNS 110

DNS Antivirus Cryptocurrency Software 110

Security Affairs

MARCH 20, 2022

SecurityAffairs – hacking, newsletter). Follow me on Twitter: @securityaffairs and Facebook. Pierluigi Paganini. The post Security Affairs newsletter Round 358 by Pierluigi Paganini appeared first on Security Affairs.

DNS 98

DNS Antivirus DDOS Hacking 98

Security Affairs

OCTOBER 15, 2019

The malicious code is used by the hackers to deliver a Moner (XMR) crypto miner that is not detected by almost any antivirus solution. “the actor moved away from hosting the scripts on dedicated servers and instead started to use Domain Name System (DNS) text records. .

Cybercrime 91

Cybercrime DNS Malware Advertising 91

Security Affairs

APRIL 21, 2019

Attackers hacked support agent to access Microsoft Outlook email accounts. RCE flaw in Electronic Arts Origin client exposes gamers to hack. Analyzing OilRigs malware that uses DNS Tunneling. Broadcom WiFi Driver bugs expose devices to hack. Avast, Avira, Sophos and other antivirus solutions show problems after.

Computers and Electronics 93

Computers and Electronics Advertising Data breaches Spyware 93

Security Affairs

DECEMBER 14, 2024

The malware remained undetected by VirusTotal antivirus engines as of December 2024. It employs DNS over HTTPS (DoH) to evade network monitoring tools and encrypts configurations with AES-256-CBC. Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini ( Security Affairs hacking, IOCONTROL)

IoT 106

IoT Malware DNS Antivirus 106

Security Affairs

MAY 8, 2022

SecurityAffairs – hacking, newsletter). To nominate, please visit:? Follow me on Twitter: @securityaffairs and Facebook. Pierluigi Paganini. The post Security Affairs newsletter Round 364 by Pierluigi Paganini appeared first on Security Affairs.

IoT 98

IoT DNS Antivirus Malware 98

Security Affairs

DECEMBER 16, 2021

In these attacks, HAFNIUM-associated systems were observed using a DNS service typically associated with testing activity to fingerprint systems.” SecurityAffairs – hacking, Log4Shell). Microsoft also confirmed that the exploitation of the Log4Shell to deploy the Khonsari ransomware , as discussed by Bitdefender recently.

Ransomware 108

Ransomware DNS Antivirus Hacking 108

Security Affairs

OCTOBER 12, 2019

FireEye Mandiant discovered that the FIN7 hacking group added new tools to its cyber arsenal, including a module to target remote administration software of ATM vendor. The messages sent to the victims were also dropping the backdoor DNSbot that primarily operates over DNS traffic. SecurityAffairs – FIN7, hacking).

Identity Theft 103

Identity Theft Hacking Advertising DNS 103

eSecurity Planet

JULY 1, 2022

The attacks include ZuoRAT, a multi-stage remote access Trojan (RAT) that specifically exploits known vulnerabilities in SOHO routers to hijack DNS and HTTP traffic. State-Sponsored Hacking Campaign. See the Best Antivirus Software. For now, the advanced persistent threat (APT) group behind the campaign remains unknown.

Malware 117

Malware DNS Antivirus Internet 117

eSecurity Planet

APRIL 18, 2022

Antivirus and EDR tools, SIEM systems (security information and event management), security vendors, software, hardware, firmware, and operating systems. Public WHOIS data such as DNS name servers, IP blocks, and contact information. One of the most underappreciated aspects of hacking is the timing.

Penetration Testing 144

Penetration Testing DNS Firmware Antivirus 144

Security Affairs

AUGUST 19, 2019

It involves DNS cache poisoning as it redirects users to a malicious site even if they enter the correct web address. Another successful strategy for preventing phishing is to secure your device using anti-malware, antivirus, VPN and other security softwares. SecurityAffairs – Phishing, hacking). Use Two Factor Authentication.

Phishing 111

Phishing Accountability Authentication Passwords 111

Security Affairs

JULY 28, 2022

Microsoft states that multiple news reports have linked the company to the Subzero malware toolset used to hack a broad range of devices, phones, computers, and network and internet-connected devices. Confirm that Microsoft Defender Antivirus is updated to security intelligence update 1.371.503.0 ” concludes Microsoft.

Surveillance 100

Surveillance Malware Authentication Accountability 100

Security Affairs

SEPTEMBER 8, 2018

PoC: [link] #malware #virus #MacOS #Apple #MacBook #MacBookPro #CyberSecurity #privacy #GDPR #Hacking #hackers #cyberpunk #Alert. Antivirus”, and ‘Dr. Top Sold MacOS AppStore application is ROGUE. Adware Doctor is stealing your privacy. — Privacy 1st (@privacyis1st) August 20, 2018. Cleaner”).

Adware 74

Adware DNS Malware Advertising 74

Security Affairs

FEBRUARY 1, 2019

It retrieves: System Info; Computer IP address; Network status; List of running processes; Available privileges; Usernames; Domain Admins; File on desktop machine; AntiVirus product on computer. Last DNS activity was in December 2018. Figure 14 – previous DNS of C2. Figure 7 – System information stealed by malware.

Malware 109

Malware DNS Social Engineering Advertising 109

Security Affairs

JULY 7, 2019

Vulnerability in Medtronic insulin pumps allow hacking devices. Firefox finally addressed the Antivirus software TLS Errors. Godlua backdoor, the first malware that abuses the DNS over HTTPS (DoH). Germany and the Netherlands agreed to build TEN, the first ever joint military internet. Is Your Browser Secure?

Scams 69

Scams Advertising Spyware DNS 69

SecureWorld News

MARCH 29, 2024

A DNS firewall and a classic antivirus are somewhat underused yet effective security tools that will come in handy. A mix of social engineering, hacking, and abuse of legitimate services makes this style of online crime incredibly effective. However, that seems to be a misconception because these cyberattacks often overlap.

Cybercrime 108

Cybercrime Advertising Engineering Antivirus 108

CyberSecurity Insiders

MAY 12, 2021

Marriott’s Fines seem to be pending, and it is not the first time the company is facing penalties for security negligence. . TWITTER GOT HACKED. Malefactors used 45 of the hacked accounts in Bitcoin-based scams. . These accounts, compromised in July 2020, included both private and corporate users.

Accountability 144

Accountability Scams Risk Software 144

Security Affairs

JUNE 4, 2019

Moreover, querying the services behind the latest associated DNS record the host responds with “403 Forbidden” message too, indicating the infrastructure may still be operative. Information about C2 and relative DNS. SecurityAffairs – Gamaredon, state-sponsored hacking). Pierluigi Paganini.

Passwords 94

Passwords DNS Engineering Malware 94

SecureList

MAY 17, 2021

While writing this article, we saw hacked WordPress, Amazon and Azure servers used for storing archives. Bizarro gathers the following information about the system on which it is running: Computer name; Operating system version; Default browser name; Installed antivirus software name. Bizarro uses the ‘ Mozilla/4.0 Windows NT 5.0′

Banking 145

Banking Social Engineering Malware Engineering 145

eSecurity Planet

JUNE 8, 2023

Unfortunately, text-based email protocols are extremely vulnerable to hacking and email has become the primary vector for cyber attacks. It can be time consuming to establish these protocols on an organization’s DNS servers, but doing so will provide two key benefits. Most organizations use email as a basic communication method.

Firewall 80

Firewall DNS Authentication Malware 80

SecureList

MAY 31, 2021

We believe this is a continuation of a campaign last summer, reported by Avast , in which the malware masqueraded as the Malwarebytes antivirus installer. One way to trick employees is to pose as IT support staff – this method was used in the Twitter hack in July 2020. It then downloads and installs the miner.

Malware 139

Malware Adware Encryption Architecture 139

eSecurity Planet

MARCH 14, 2023

Endpoint security : protects endpoints with antivirus, endpoint detection and response (EDR) tools, etc. Other hackers might use a spoofed domain name system (DNS) or IP addresses to redirect users from legitimate connections (to websites, servers, etc.) endpoint security (antivirus, Endpoint Detection and Response, etc.),

Network Security 98

Network Security Firewall Penetration Testing Encryption 98

Security Boulevard

SEPTEMBER 4, 2024

Originally made to hack participants in online card games — poker players in particular — it targets Windows operating systems and is characterized by its advanced evasion techniques, making it difficult to detect and analyze. Supply Chain Attack with DNS Safeguards StealC & Vidar Malware Campaign Identified Sign up for the (free!)

Malware 59

Malware Spyware Software Encryption 59

SecureList

APRIL 27, 2021

It was first publicly documented in 2014, in the aftermath of the Gamma Group hacking incident. Although Lyceum still prefers taking advantage of DNS tunneling, it appears to have replaced the previously documented.NET payload with a new C++ backdoor and a PowerShell script that serve the same purpose. Other interesting discoveries.

Malware 145

Malware Government Spyware Social Engineering 145

eSecurity Planet

AUGUST 20, 2024

VPNs can be hacked. Data in transit is safe due to encryption, and your actual IP address can’t be read — the DNS server’s IP address appears instead. The slightly longer answer is: In a well-designed network, the slow-down will be negligible, in the low hundreds of milliseconds — not a serious problem unless you’re a gamer.

VPN 57

VPN Internet Internet Encryption 57

Security Boulevard

JUNE 15, 2023

As a result, this technique may bypass static antivirus signatures and complicate malware reverse engineering. Prior to this date, in 2021, the domain was registered and hosted by a previous owner, with DNS resolution observed through October of 2021. The builder enables operators to specify up to four C2 endpoints.

Cryptocurrency 52

Cryptocurrency Password Management Malware DNS 52

Krebs on Security

JUNE 21, 2023

If you operate a cybercrime business that relies on disseminating malicious software, you probably also spend a good deal of time trying to disguise or “crypt” your malware so that it appears benign to antivirus and security products. The registration records for the website Cryptor[.]biz ” Crypt[.]guru’s

Malware 269

Malware Antivirus Cybercrime Hacking 269

ForAllSecure

NOVEMBER 2, 2021

It's about challenging our expectations about the people who hack for a living. He works for an antivirus company and he's been scanning for malware families on the internet. Vamosi: Most antivirus products are found on Windows, much less so on Mac and Linux. Vamosi: Welcome to The Hacker Mind. At this year's sector.

Internet 52

Internet Internet Malware Authentication 52