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

Krebs on Security

APRIL 4, 2024

Launched in 2008, privnote.com employs technology that encrypts each message so that even Privnote itself cannot read its contents. A review of the passive DNS records tied to this address shows that apart from subdomains dedicated to tornote[.]io, The real Privnote, at privnote.com. And it doesn’t send or receive messages.

Phishing 210

Phishing Cryptocurrency DDOS Internet 210

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. Encrypting files.

Ransomware 126

Ransomware DNS Encryption Backups 126

Webroot

SEPTEMBER 7, 2023

How to protect your data A sophisticated, layered security strategy will already have prevention tools like endpoint and DNS protection in place as well as security awareness training to stop threats before they reach your network. If a cyber criminal gets access to emails, they won’t be able to access that sensitive data if it’s encrypted.

Encryption 89

Encryption Cyber Insurance Cybercrime Phishing 89

Google Security

MAY 25, 2023

At Cloudflare, we believe encryption should be free for all; we pioneered that for all our customers back in 2014 when we included encryption for free in all our products. Their technical expertise guarantees they'll be able to scale to meet the needs of an increasingly encrypted Internet," says Matthew Prince, CEO, Cloudflare.

Encryption 87

Encryption Internet Internet DNS 87

Security Affairs

OCTOBER 20, 2021

“However, instead of sending it in cleartext, the client deploys a symmetric AES encryption for any communication over the WebSocket for the first exchange, as no shared secret is established yet, and the AES encryption will generate a default key for this first exchange. ” continues the analysis.

Encryption 88

Encryption DNS Architecture Firewall 88

eSecurity Planet

SEPTEMBER 17, 2021

Cobalt Strike Beacon Linux enables emulation of advanced attacks to a network over HTTP, HTTPS, or DNS. It’s a DNS-based communication that helps circumvent classic defense mechanisms that focus on HTTP traffic. Fox-IT researchers found a bug in Cobalt Strike in 2019 that defenders could exploit to identify attacker servers.

DNS 102

DNS Malware Software Security Awareness 102

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 79

DNS Advertising Spyware Software 79

Security Affairs

MARCH 22, 2020

The expert Bob Diachenko has discovered an unsecured Elasticsearch install belonging to a UK security firm that contained 5 billion records of data leaked in previous incidents that took place between 2012 and 2019. ” wrote Security Discovery’s researcher Bob Diachenko.

Data breaches 99

Data breaches DNS Advertising Engineering 99

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. To do so, it performs a DNS request to don-dns[.]com

Cryptocurrency 78

Cryptocurrency DNS Malware Encryption 78

Security Affairs

NOVEMBER 19, 2020

Impacted systems included WordPress and DotNetNuke managed hosting platforms, online databases, email servers, DNS servers, RDP access points, and FTP servers. REvil gang is one of the major ransomware operations, it has been active since April 2019, its operators claim to earn over $100 million a year through its RaaS service.

Ransomware 113

Ransomware DNS Encryption Hacking 113

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. The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points. ” continues the analysis.

Telecommunications 66

Telecommunications DNS Malware Advertising 66

Security Affairs

MARCH 22, 2020

The expert Bob Diachenko has discovered an unsecured Elasticsearch install belonging to the security firm Keepnet Labs that contained 5 billion records of data leaked in previous incidents that took place between 2012 and 2019. ” wrote Security Discovery’s researcher Bob Diachenko.

Data breaches 60

Data breaches DNS Advertising Engineering 60

Security Affairs

DECEMBER 7, 2019

The experts at Cybaze confirmed that the infection patterns were similar to the other attacks spotted in early 2019, including the Matryoshka structure and the use of chained SFX archives. The bait documents reveal malicious activity from at least September 2019, to November 25, 2019. The Gamaredon group.

Government 57

Government Advertising Media DNS 57

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 222

Accountability Advertising Marketing Malware 222

Security Affairs

JULY 23, 2019

Attackers also noticed that systems infected with the above two families were also targeted with the RoyalDNS malware that uses DNS to communicate with the C&C server. Once executed the command the backdoor returns output through DNS. “The Ke3chang APT group (a.k.a.

DNS 86

DNS Malware Advertising Manufacturing 86

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

Fox IT

JANUARY 12, 2021

NCC Group and Fox-IT observed this threat actor during various incident response engagements performed between October 2019 until April 2020. The more recent intrusions took place in 2019 at companies in the aviation industry. observed Q2 2017 Cobalt Strike v3.12, observed Q3 2018 Cobalt Strike v3.14, observed Q2 2019.

VPN 68

VPN Accountability Passwords DNS 68

CyberSecurity Insiders

JANUARY 31, 2021

Back in 2019, a McAfee report confirmed that across all sectors, ransomware incidents increased by 118% during the first quarter of 2019. The average ransom demand increased 100% from 2019 through Q1 of 2020. 3: Not Just Encrypting Data, but Stealing Data to Extort. 2: Increased Ransom Amount.

Ransomware 40

Ransomware Backups Encryption Healthcare 40

Security Affairs

JULY 27, 2020

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.”. Another protocol exploited by threat actors in the wild is the Web Services Dynamic Discovery (WS-DD), experts observed large scale DDoS attacks in May and August 2019.

DDOS 109

DDOS IoT Internet Internet 109

Security Boulevard

JULY 22, 2023

Upon first launch of this new, independent-from-System1 Waterfox version, I used Portmaster to capture DNS queries made: Domain Description waterfox.net The official Waterfox website. Lencr.org is owned by Let's Encrypt, which provides free TLS certificates for websites (so you connect via HTTPS instead of HTTP ).

Data collection 52

Data collection Engineering Encryption DNS 52

Security Affairs

AUGUST 20, 2019

In 2019 alone, Silence has infected workstations in more than 30 countries across Europe, Latin America, Africa, and Asia. Ivoke was detected by Group-IB’s Threat Intelligence team in May 2019, when Silence sent out phishing emails purporting to be from a bank’s client with a request to block a card.

Banking 55

Banking Cybercrime Cybersecurity Advertising 55

SC Magazine

JUNE 4, 2021

Today’s columnist, Raj Badhwar of Voya Financial, says to prevent cloud-based breaches like the one that happened to Capital One in 2019, security teams need to develop an enterprise cloud operating model based on a cloud-first approach. CreativeCommons CC BY-NC 2.0. Core Cloud Native Services: Consists of core cloud services (e.g.,

Penetration Testing 78

Penetration Testing DNS Technology CISO 78

Security Affairs

AUGUST 7, 2019

group_d : from March 2019 to August 2019 The evaluation process would take care of the following Techniques: Delivery , Exploit , Install and Command. T1094) mainly developed using DNS resolutions (which is actually one of the main characteristic of the attacker group). group_a : from 2016 to August 2017 2.

Computers and Electronics 80

Computers and Electronics Penetration Testing DNS Phishing 80

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 81

DNS Telecommunications Government Encryption 81

SecureList

AUGUST 30, 2023

Tomiris called, they want their Turla malware back We first reported Tomiris in September 2021, following our investigation into a DNS hijack against a government organization in the CIS (Commonwealth of Independent States). The attribution of tools used in a cyber-attack can sometimes be a very tricky issue. Meet the GoldenJackal APT group.

Malware 73

Malware Spyware Cryptocurrency Government 73

SecureList

JUNE 1, 2023

The oldest traces of infection that we discovered happened in 2019. Optional: decrypt the backup If the owner of the device has set up encryption for the backup previously, the backup copy will be encrypted. The timelines of multiple devices indicate that they may be reinfected after rebooting. net backuprabbit[.]com com anstv[.]net

Malware 145

Malware Backups Mobile DNS 145

Cisco Security

AUGUST 29, 2022

25+ Years of Black Hat (and some DNS stats), by Alejo Calaoagan. Cisco is a Premium Partner of the Black Hat NOC , and is the Official Wired & Wireless Network Equipment, Mobile Device Management, DNS (Domain Name Service) and Malware Analysis Provider of Black Hat. Umbrella DNS into NetWitness SIEM and Palo Alto Firewall .

DNS 73

DNS Wireless Malware Firewall 73

SecureList

DECEMBER 8, 2022

cab.cabzipContentpythonLib<77 python libraries for system, network, and encryption/encoding> Below are noteworthy dropped files and their descriptions: Filename. On the network, the threat actor’s use of a C2 IP address instead of domain names remains a prime method of bypassing DNS-based security controls. CRT.manifest.

Malware 104

Malware DNS Engineering Internet 104

McAfee

SEPTEMBER 14, 2021

The PlugX families we observed used DNS [ T1071.001 ] [ T1071.004 ] as the transport channel for C2 traffic, in particular TXT queries. Another clue that helped us was the use of DNS tunneling by Winnti which we discovered traces of in memory. The hardcoded 208.67.222.222 resolves to a legitimate OpenDNS DNS server. Conclusion.

Malware 144

Malware DNS Accountability Manufacturing 144

eSecurity Planet

MAY 28, 2021

Ransomware: Encryption, Exfiltration, and Extortion. Ransomware perpetrators of the past presented a problem of availability through encryption. Detect Focus on encryption Assume exfiltration. Also Read: How to Prevent DNS Attacks. Also Read: Types of Malware | Best Malware Protection Practices for 2021. Old way New way.

Software 113

Software Firmware DNS VPN 113

eSecurity Planet

DECEMBER 3, 2021

lazydocker : A simple terminal UI for both docker and docker-compose : [link] pic.twitter.com/HsK17rzg8m — Binni Shah (@binitamshah) July 1, 2019. Facebook Plans on Backdooring WhatsApp [link] — Schneier Blog (@schneierblog) August 1, 2019. — Jason Haddix (@Jhaddix) July 27, 2019. Brian Krebs | @briankrebs.

Accountability 139

Accountability Cybersecurity Penetration Testing InfoSec 139

eSecurity Planet

MARCH 25, 2022

By exploiting weak server vulnerabilities, the Iran-based hackers were able to gain access, move laterally, encrypt IT systems, and demand ransom payment. The Remote Access VPN enables more robust security with the encryption of transmitted data, system compliance scanning, and multi-factor authentication.

VPN 119

VPN Software Authentication Encryption 119

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). The following map shows the countries where we detected Tomiris targets (colored in green: Afghanistan and CIS members or ratifiers).

Malware 89

Malware DNS Government Software 89

SecureList

FEBRUARY 7, 2022

We have been tracking Roaming Mantis since 2018, and published five blog posts about this campaign: Roaming Mantis uses DNS hijacking to infect Android smartphones. Then, the encrypted payload is XORed using the embedded XOR key. Roaming Mantis dabbles in mining and phishing multilingually. Roaming Mantis, part III.

Phishing 81

Phishing DNS Mobile Malware 81

Krebs on Security

JULY 3, 2023

However, searching passive DNS records at DomainTools.com for thedomainsvault[.]com Searching on ubsagency@gmail.com in Constella Intelligence shows the address was used sometime before February 2019 to create an account under the name “ SammySam_Alon ” at the interior decorating site Houzz.com. Thedomainsvault[.]com

Scams 232

Scams Business Services Accountability Marketing 232

SecureList

NOVEMBER 26, 2021

In June, more than six months after DarkHalo had gone dark, we observed the DNS hijacking of multiple government zones of a CIS member state that allowed the attacker to redirect traffic from government mail servers to computers under their control – probably achieved by obtaining credentials to the control panel of the victims’ registrar.

Malware 86

Malware Banking Energy and Utilities Accountability 86