Krebs on Security

JANUARY 22, 2019

Experts at Cisco Talos and other security firms quickly drew parallels between the two mass spam campaigns, pointing to a significant overlap in Russia-based Internet addresses used to send the junk emails. Large-scale spam campaigns often are conducted using newly-registered or hacked email addresses, and/or throwaway domains.

DNS 235

DNS Internet Internet Computers and Electronics 235

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

JANUARY 7, 2024

Between 2017 and 2019, the APT group mainly used DNS hijacking in its campaigns. Reduce the number of systems that can be reached over internet using SSH. Follow me on Twitter: @securityaffairs and Faceboo k and Mastodon Pierluigi Paganini ( SecurityAffairs – hacking, Sea Turtle)

Media 113

Media Accountability Telecommunications Government 113

Security Affairs

MARCH 20, 2020

The nation-state hackers are scanning the entire internet, in search of vulnerable webmail and Microsoft Exchange Autodiscover servers that expose TCP ports 445 and 1433. In May 2019, the experts noticed that the group started using hacked email addresses of numerous high-profile targets to send credential spam messages.

Phishing 135

Phishing Accountability Advertising DNS 135

Security Affairs

DECEMBER 19, 2022

The botnet was involved in stealing users’ credentials and data, mining cryptocurrencies abusing victims’ resources, and setting up proxies to funnel other people’s internet traffic through infected machines and routers. SecurityAffairs – hacking, Glupteba botnet). Pierluigi Paganini.

DNS 98

DNS Antivirus Cryptocurrency Software 98

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. .” SecurityAffairs – hacking, Mozi botnet). Pierluigi Paganini.

IoT 104

IoT DNS Manufacturing Firmware 104

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. Pierluigi Paganini.

IoT 138

IoT Firmware DNS Advertising 138

Security Affairs

OCTOBER 28, 2020

Microsoft announced to have taken down 62 of the original 69 TrickBot C&C servers, seven servers that could not be brought down last week were Internet of Things (IoT) devices. At the end of 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the DNS protocol for C2 communications.

DNS 105

DNS Banking Advertising IoT 105

Security Affairs

OCTOBER 29, 2020

In early 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the anchor_dns tool for abusing the DNS protocol for C2 communications. SecurityAffairs – hacking, ransomware). Several groups of experts linked both TrickBot and Ryuk threats to cybercrime gangs operating out of Russia.

Healthcare 142

Healthcare Ransomware Cybercrime Advertising 142

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. In some cases the router is reconfigured to use rogue DNS servers, which redirect victims to phishing pages that closely look like real online banking sites.

DNS 75

DNS Passwords Advertising Banking 75

Security Affairs

OCTOBER 20, 2021

China-linked cyberespionage group LightBasin hacked mobile telephone networks around the world and used specialized tools to access calling records. CrowdStrike researchers reported that at least 13 telecommunication companies were compromised by since 2019. ” reads the report published by Crowdstrike.

Telecommunications 117

Telecommunications Mobile Hacking Architecture 117

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 60

DNS Advertising Engineering Internet 60

CyberSecurity Insiders

DECEMBER 21, 2022

ESG Research says 69% of organizations have suffered a cyberattack that began with the exploitation of an unknown, unmanaged, or misconfigured internet-facing asset. While these aren’t generally the most critical assets, if these are exposed to the internet, they are easily available to attack by threat actors. What can be done.

Internet 131

Internet Internet Risk DNS 131

Security Affairs

JULY 30, 2019

Even a device that is reaching outbound to the internet could be attacked and taken over. “ According to Shodan , there are over 808K SonicWall firewalls connected to the Internet, representing a similar number of networks that these devices defend.” ” reads the report published by Armis Labs.

Risk 73

Risk IoT Firewall DNS 73

Security Affairs

SEPTEMBER 8, 2019

Cisco addresses CVE-2019-12643 critical flaw in virtual Service Container for IOS XE. USBAnywhere BMC flaws expose Supermicro servers to hack. Cyber Defense Magazine – September 2019 has arrived. Some Zyxel devices can be hacked via DNS requests. Twitter temporarily disables feature to tweet via SMS after CEO hack.

IoT 75

IoT Data breaches DNS Advertising 75

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. SecurityAffairs – hacking, Pink botnet). Pierluigi Paganini.

Architecture 123

Architecture DDOS Advertising Firmware 123

Krebs on Security

FEBRUARY 24, 2023

BitSight researchers found significant overlap in the Internet addresses used by those domains and a domain called BHproxies[.]com. The only experience listed for Khafagy prior to the TikTok job is labeled “Marketing” at “Confidential,” from February 2014 to October 2019. million from private investors.

Accountability 229

Accountability Advertising Marketing Malware 229

Security Affairs

DECEMBER 12, 2019

Microsoft experts reported that the GALLIUM hacking group exploits unpatched vulnerabilities to compromise systems running /JBoss application servers. “To compromise targeted networks, GALLIUM target unpatched internet-facing services using publicly available exploits and have been known to target vulnerabilities in WildFly/JBoss.”

Telecommunications 66

Telecommunications DNS Malware Advertising 66

Krebs on Security

JULY 18, 2022

For the past seven years, an online service known as 911 has sold access to hundreds of thousands of Microsoft Windows computers daily, allowing customers to route their Internet traffic through PCs in virtually any country or city around the globe — but predominantly in the United States. THE INTERNET NEVER FORGETS.

VPN 304

VPN Computers and Electronics Antivirus Software 304

Security Affairs

JULY 27, 2020

In December 2018, security experts from Trend Micro discovered that some machine-to-machine (M2M) protocols can be abused to attack IoT and industrial Internet of Things (IIoT) systems. According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.”.

DDOS 109

DDOS IoT Internet Internet 109

Security Affairs

AUGUST 19, 2019

It allows users using web browsers to set up user accounts, Apache, DNS, file sharing and much more. News of the day is that Webmin contained a remote code execution vulnerability, tracked as CVE-2019-15107, for more than a year. ehakkus) August 11, 2019. SecurityAffairs – Webmin, hacking). Pierluigi Paganini.

Passwords 79

Passwords System Administration Advertising DNS 79

Security Affairs

DECEMBER 18, 2019

The Momentum bot achieves persistence by modifying the ‘ rc’ files, then connect to command and control (C&C) server and to an internet relay chat (IRC) channel called #HellRoom to register itself and accept commands. The C&C servers were live as recently as November 18 2019.” ” concludes the analysis.

Malware 62

Malware DDOS DNS Advertising 62

Security Affairs

NOVEMBER 21, 2019

“Fast forwarded to October 11, 2019, our Anglerfish honeypot captured another suspicious ELF sample, and it turned out to be the Downloader of the previous suspicious ELF sample.” It allows users using web browsers to set up user accounts, Apache, DNS, file sharing and much more.

DDOS 80

DDOS System Administration Advertising DNS 80

Security Affairs

APRIL 27, 2020

The VictoryGate botnet is active since at least May 2019, the botnet is more active in Latin America the most. The VictoryGate botnet used only subdomains registered at the dynamic DNS provider No-IP to control infected devices. “This will prevent new victims from downloading secondary payloads from the internet.

Advertising 103

Advertising DNS Malware Hacking 103

Security Affairs

JANUARY 24, 2019

. “ Redaman uses an application-defined hook procedure to monitor browser activity, specifically Chrome , Firefox, and Internet Explorer. We expect to discover new Redaman samples as 2019 progresses ,”. It then searches the local host for information related to the financial sector.” ” Palo Alto Networks concludes.

Banking 86

Banking Malware Advertising DNS 86

Errata Security

AUGUST 31, 2019

Parsing DNS is a good example. In a DNS packet, a name appears many times. This is known as "DNS name compression". Yet, this DNS compression feature is a common source of parser errors. 6 11:58 PM - Aug 25, 2019 Twitter Ads info and privacy See Habib X. ????'s The Internet is written in C. 1, or JSON.

DNS 40

DNS Internet Internet Software 40

SC Magazine

JUNE 22, 2021

With contractors in the crosshairs of hostile nation-state hacking groups and ransomware gangs, the Department of Defense is in the midst of implementing a new evaluation program called the Cybersecurity Maturity Model Certification.

Government 68

Government Hacking Cybersecurity DNS 68

SC Magazine

JUNE 22, 2021

With contractors in the crosshairs of hostile nation-state hacking groups and ransomware gangs, the Department of Defense is in the midst of implementing a new evaluation program called the Cybersecurity Maturity Model Certification.

Government 53

Government Hacking Cybersecurity DNS 53

Security Affairs

JANUARY 10, 2019

Security expert uncovered a DNS hijacking campaign targeting organizations in various industries worldwide and suspects Iranian APT groups. “ Experts monitored the activities of threat actors between January 2017 and January 2019. . “ Experts monitored the activities of threat actors between January 2017 and January 2019.

DNS 82

DNS Telecommunications Government Encryption 82

SecureList

DECEMBER 8, 2022

Connect to C2 URL over HTTP with GET/POST methods using hidden Internet Explorer instance (called using InternetExplorer.Application). Runs ie.vbe script using CScript.exe to ensure no residual Internet Explorer instances exists after C2 communication uses IE hidden browser. function shell_exec(command). Function RunIeScript().

Malware 104

Malware DNS Engineering Internet 104

Security Affairs

NOVEMBER 29, 2019

Group-IB, has analyzed key recent changes to the global cyberthreat landscape in the “Hi-Tech Crime Trends 2019/2020” report. According to Group-IB’s experts, the most frustrating trend of 2019 was the use of cyberweapons in military operations. As for 2019, it has become the year of covert military operations in cyberspace.

Banking 87

Banking Telecommunications Marketing Internet 87

Krebs on Security

FEBRUARY 8, 2020

will buy it, but fears they won’t and instead it will get snatched up by someone working with organized cybercriminals or state-funded hacking groups bent on undermining the interests of Western corporations. O’Connor said he hopes Microsoft Corp. INSTANT CORPORATE BOTNET, ANYONE? Department of Homeland Security.

DNS 338

DNS Internet Internet Software 338

SecureList

JUNE 7, 2023

MotW is a Windows security measure — the system displays a warning message when someone tries to open a file downloaded from the internet. Roaming Mantis implements new DNS changer We continue to track the activities of Roaming Mantis (aka Shaoye), a well-established threat actor targeting countries in Asia.

DNS 100

DNS Malware Cryptocurrency Retail 100

SecureList

FEBRUARY 16, 2021

The DTLS (Datagram Transport Layer Security) protocol is used to establish secure connections over UDP, through which most DNS queries, as well as audio and video traffic, are sent. Dear players, The PUBG MOBILE team are currently actively working to resolve the DDoS attacks against our systems and the new hacking issues.

DDOS 129

DDOS Cryptocurrency Marketing Internet 129

ForAllSecure

OCTOBER 9, 2019

pool party in 2019 might have young Benjamin being advised to look into “AI” – artificial intelligence. Paul Roberts: Plastics may have been a hot tip in 1967 when the movie The Graduate came out, but in 2019, young Benjamin might be advised to look into AI or artificial intelligence. That same L.A. Speaker 1: Shh.

InfoSec 52

InfoSec Artificial Intelligence Computers and Electronics Software 52

Security Affairs

FEBRUARY 19, 2019

In detail, the first wave observed was on February 12th, 2019. All the network traffic on the machine has now been monitored, but no connections to the Internet has been performed. The malware tries to resolve the DNS: sameerd.net. Beforehand, we simulate a fake Internet, and the malicious request was received.

Malware 78

Malware Phishing DNS Engineering 78

ForAllSecure

OCTOBER 9, 2019

pool party in 2019 might have young Benjamin being advised to look into “AI” – artificial intelligence. Paul Roberts: Plastics may have been a hot tip in 1967 when the movie The Graduate came out, but in 2019, young Benjamin might be advised to look into AI or artificial intelligence. That same L.A. Speaker 1: Shh.

InfoSec 40

InfoSec Artificial Intelligence Computers and Electronics Software 40