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. Pierluigi Paganini.

DNS 81

DNS Advertising Spyware Software 81

Security Affairs

MARCH 22, 2020

. “On March 16th I have found an unprotected and thus publicly available Elasticsearch instance which appeared to be managed by a UK-based security company, according to the SSL certificate and reverse DNS records.” Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Adobe, Last.

Data breaches 99

Data breaches DNS Advertising Engineering 99

Security Affairs

DECEMBER 24, 2018

The communications are not encrypted, however the WiFi password is sent encrypted during set up (albeit trivial to decrypt).” “As the communications are not encrypted, it is simple to Man-in-the-Middle the traffic and analyse the API.” ” reads the analysis published by MWR InfoSecurity.

IoT 79

IoT Hacking DNS Authentication 79

Security Affairs

APRIL 12, 2019

Unfortunately, users that have no backups of their encryption keys will be not able to read their previous conversations. On Friday, the attacker used the Cloudflare API key to change the DNS records for matrix.org and redirect users to a GitHub page displaying a portion of the compromised data as a proof of the hack.

Hacking 82

Hacking DNS Passwords Data breaches 82

Security Affairs

JUNE 9, 2022

Other techniques employed by the APT group include DLL hijacking, Themida-packed files, and DNS tunneling to evade post-compromise detection. Between 2012 and 2015, the Aoqin Dragon actors heavily relied on exploits for CVE-2012-0158 and CVE-2010-3333 vulnerabilities. The loader will check the file path first and decrypt the payloads.

Malware 84

Malware DNS Encryption Education 84

Security Affairs

JULY 23, 2019

ESET also reported that the APT15 has been using the Ketrican backdoor since 2015, for downloading and uploading files, executing files and shell commands, and sleeping for a configurable time. . Once executed the command the backdoor returns output through DNS. Once executed the command the backdoor returns output through DNS.

DNS 86

DNS Malware Advertising Manufacturing 86

Security Affairs

DECEMBER 12, 2019

The operators leverage on low cost and easy to replace infrastructure using dynamic-DNS domains and regularly reused hop points. “MSTIC analysis indicates the use of dynamic DNS providers as opposed to registered domains is in line with GALLIUM’s trend towards low cost and low effort operations.”

Telecommunications 66

Telecommunications DNS Malware Advertising 66

Security Affairs

MARCH 22, 2020

. “On March 16th I have found an unprotected and thus publicly available Elasticsearch instance which appeared to be managed by a UK-based security company, according to the SSL certificate and reverse DNS records.” ” ~ Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Adobe, Last.

Data breaches 60

Data breaches DNS Advertising Engineering 60

Security Affairs

AUGUST 8, 2018

In 2015, Europol partnering with several private technology firms announced the takedown of the Ramnit C2 infrastructure. According to domain names which are resolved to the IP address of this C&C server, it pretends to control even old bots, first seen back in 2015. ” reads the analysis published by Checkpoint security.

Malware 47

Malware DNS Encryption Banking 47

Security Affairs

OCTOBER 23, 2018

The new IoT malware borrows code from the Xor.DDoS and Mirai bots, it also implements fresh evasion techniques, for example, the authors have encrypted both the main component and its corresponding Lua script using the ChaCha stream cipher. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

IoT 80

IoT DDOS Architecture Malware 80

Security Affairs

NOVEMBER 21, 2019

.” The analysis of the bot revealed that it supports seven functions: reverse shell, self-uninstall, gather process’ network information, gather Bot information, execute system commands, run encrypted files specified in URLs, DDoS attack, etc. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

DDOS 80

DDOS System Administration Advertising DNS 80

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.”. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Configure network firewalls to block unauthorized IP addresses and disable port forwarding.

DDOS 109

DDOS IoT Internet Internet 109

Security Affairs

OCTOBER 12, 2019

The group that has been active since late 2015 targeted businesses worldwide to steal payment card information. “The first of FIN7’s new tools is BOOSTWRITE – an in-memory-only dropper that decrypts embedded payloads using an encryption key retrieved from a remote server at runtime. ” concludes the report.

Identity Theft 75

Identity Theft Hacking Advertising DNS 75

Security Affairs

DECEMBER 7, 2019

The group was first discovered by Symantec and TrendMicro in 2015 but evidence of its activities has been dated back to 2013. Upon reboot, the VBScript performs an HTTP GET request to fetch an encrypted stage from a dynamic DNS domain. ” ~ Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

Government 57

Government Advertising Media DNS 57

Security Affairs

AUGUST 10, 2020

Our findings show that both Telenor and MPT block websites using DNS tampering. MPT is ignoring the DNS requests to the blocked domains, while Telenor is redirecting them to an IP address outside of the country. The block page uses the domain “ urlblocked.pw ” registered the 26th of March 2020 with a free Let’s encrypt certificate.

Internet 74

Internet Internet Telecommunications DNS 74

Security Affairs

MARCH 4, 2019

Instead, the real IP address of the C2 is obfuscated with what is essentially an encryption algorithm. Experts pointed out that DGA is a double-edged sword because allows security researchers to analyze DNS and network traffic to enumerate bots. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

DNS 79

DNS Banking Advertising Ransomware 79

Security Affairs

AUGUST 10, 2020

Pavel explained that attackers could also collect information even when the traffic is encrypted. The analysis of DNS could reveal the user’s Internet browsing history while the analysis of TLS certificates could allow fingerprinting the servers the user connected.

Internet 93

Internet Internet Advertising Encryption 93

Security Affairs

JANUARY 10, 2019

Security expert uncovered a DNS hijacking campaign targeting organizations in various industries worldwide and suspects Iranian APT groups. It is interesting to note that FireEye confirmed that this campaign is different from other operations carried out by Iranian APT groups due to the use of DNS hijacking at scale.

DNS 82

DNS Telecommunications Government Encryption 82

SecureList

DECEMBER 8, 2022

However, some of the YouTube links observed are unlisted and go back to 2015, indicating a possible infrastructure reuse. In addition, newer Janicab variants have changed significantly in structure compared to older Janicab Windows variants from 2015. Janicab 2015 listing of DDRs. Dropped files: cab.cabzipContentK.dll.

Malware 104

Malware DNS Engineering Internet 104

Security Affairs

AUGUST 7, 2019

T1094) mainly developed using DNS resolutions (which is actually one of the main characteristic of the attacker group). They begun development by introducing crafted communication protocol over DNS and later they added, to such a layer, encoding and encryption self build protocols. Pierluigi Paganini.

Computers and Electronics 80

Computers and Electronics Penetration Testing DNS Phishing 80

Security Affairs

APRIL 1, 2019

But if we go on the Akamai blog we can still find a reference to Elknot posted on April 4, 2016 on a topic referred to “ BillGates ”, another DDoS malware whose “ attack vectors available within the toolkit include: ICMP flood, TCP flood, UDP flood, SYN flood, HTTP Flood (Layer7) and DNS reflection floods. Pierluigi Paganini.

DDOS 84

DDOS Malware Encryption Penetration Testing 84

Fox IT

JANUARY 12, 2021

Fox-IT has been collecting information about Cobalt Strike team servers since January 2015. The adversary compresses and encrypts the data by using WinRAR from the command-line. hp<password> = encrypt both file data and headers with password. The DNS-responses weren’t logged. m5 = use compression level 5.

VPN 68

VPN Accountability Passwords DNS 68

Security Affairs

AUGUST 20, 2019

The Trojan is used during the lateral movement stage and is designed to control compromised systems by performing tasks through the command shell and tunneling traffic using the DNS protocol. Silence has also changed its encryption alphabets, string encryption, and commands for the bot and the main module. Pierluigi Paganini.

Banking 56

Banking Cybercrime Cybersecurity Advertising 56

Security Affairs

APRIL 9, 2019

The malware command and control infrastructure abuses the Pastebin service to ensure resilience, in fact the malware dynamically retrieves the real C2 destination address from a pastie over an encrypted HTTPS channel. Also, the attacker behind this sample leans on the Dynamic DNS service “warzonedns.com”, pointing to the 213.183.58[.10

Malware 71

Malware Advertising DNS Antivirus 71

Security Affairs

DECEMBER 20, 2018

The malware tries to connect to the remote host 149.154.157.104 (EDIS-IT IT) through an encrypted SSL channel, then it downloads other components and deletes itself from the filesystem. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->. Technical Analysis. Dissecting the Danabot Paylaod Targeting Italy.

Banking 74

Banking Malware Internet Internet 74

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 99

Software Firmware DNS VPN 99

eSecurity Planet

JANUARY 26, 2022

AES-256 encryption for data at rest and TLS v1.2 Spun off from the telecommunications vendor JDS Uniphase in 2015, Viavi Solutions is a newer name, but it has four-plus decades of IT services experience. Auvik Features. Catchpoint Features. LogicMonitor. Read more : Best Identity and Access Management (IAM) Solutions for 2022.

Marketing 110

Marketing DDOS Threat Detection DNS 110

Security Affairs

APRIL 23, 2019

Security expert Marco Ramilli published the findings of a quick analysis of the webmask project standing behind the DNS attacks implemented by APT34 (aka OilRig and HelixKitten ). According to Duo, “ OilRig delivered Trojans that use DNS tunneling for command and control in attacks since at least May 2016. Leaked Source code.

DNS 77

DNS Computers and Electronics Penetration Testing Government 77

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.

Malware 144

Malware DNS Accountability Manufacturing 144

eSecurity Planet

FEBRUARY 8, 2021

PoSeidon malware, discovered by Cisco researchers in 2015, installs a keylogger and searches the POS device’s memory for number sequences that match credit card data — then uploads that data to an exfiltration server. Multi-factor authentication is also required for remote access. Three steps to an ideal POS security solution.

Retail 52

Retail Encryption Malware Artificial Intelligence 52

Security Boulevard

AUGUST 12, 2022

The CA will issue challenges (DNS or HTTPS) requiring the agent to take an action that demonstrates control over said domain(s). Back in 2015, when Let’s Encrypt was was just emerging as a certificate-authority force, Josh Aas, the ISRG's executive director said that "Encryption should be the default for the web.

Encryption 52

Encryption DNS Backups Internet 52

Cisco Security

AUGUST 28, 2023

XDR (eXtended Detection and Response) Integrations At Black Hat USA 2023, Cisco Secure was the official Mobile Device Management, DNS (Domain Name Service) and Malware Analysis Provider. SCA detected 289 alerts including Suspected Port Abuse, Internal Port Scanner, New Unusual DNS Resolver,and Protocol Violation (Geographic).

Wireless 68

Wireless DNS Mobile Technology 68

Security Affairs

FEBRUARY 19, 2019

An encrypted snippet of code, for instance, has high entropy associated. The malware tries to resolve the DNS: sameerd.net. As shown, the DNS has not been resolved. Figure 31: Available ports of the malicious DNS. Figure 3: Passive DNS replication. Pay attention. The.text section is packed and has high entropy.

Malware 78

Malware Phishing DNS Engineering 78

Security Affairs

NOVEMBER 10, 2018

However, since they do not encrypt your traffic and communications, your personal information can be easily accessed by an intruder. Also, all your data is passed through a secure encrypted tunnel, making it unreadable to the outside world. Copyright (C) 2014-2015 Media.net Advertising FZ-LLC All Rights Reserved -->.

VPN 94

VPN Internet Internet Small Business 94

Security Affairs

DECEMBER 20, 2019

Continuing to analyze the code, we reconstructed the approach used by the attacker to obfuscate the payload: all the necessary information has been encrypted, splitted, and then encoded in Base64 chunks stored into different structures named as “ta” , “t_ep” , “t_eq”. The “Dns” Plugin. Initialization of basic malware information.

Malware 59

Malware DNS Architecture Advertising 59

Security Affairs

NOVEMBER 14, 2018

DNS requests intercepted. The SSL certificate has been released by the “cPanel, Inc“ CA and is valid since 16th August 2018; this encryption certificate is likely related to the previously discussed HTTP 301 redirection due to the common name “ CN=wvpznpgahbtoobu.usa.cc ” found in the Issuer field. Edited by Pierluigi Paganini.

Computers and Electronics 81

Computers and Electronics Penetration Testing Malware Phishing 81

SecureList

APRIL 27, 2021

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. Ferocious Kitten is an APT group that has been active against Persian-speaking individuals since 2015 and appears to be based in Iran.

Malware 138

Malware Spyware Government Social Engineering 138