SecureList

NOVEMBER 26, 2021

IT threat evolution Q3 2021. IT threat evolution in Q3 2021. IT threat evolution in Q3 2021. While tracking this threat actor in spring 2021, we discovered a newer version. Targeted attacks exploiting CVE-2021-40444. PC statistics. Mobile statistics. Targeted attacks. WildPressure targets macOS.

Malware 135

Malware Banking Energy and Utilities Accountability 135

SecureList

NOVEMBER 6, 2024

Its parameters are also encrypted — they are decrypted once dropped by the first stage. The target DLL is loaded via a malicious shellcode and encrypted with AES-128 in the same way as described earlier in the initial stage. SteelFox resolves this via Google Public DNS and DNS over HTTPS (DoH). communication.

Software 123

Software Cryptocurrency Malware DNS 123

eSecurity Planet

AUGUST 13, 2021

This article looks at the top digital forensic software tools of 2021 and what customers should consider when buying or acquiring a DSF tool. Best Digital Forensics Software Tools of 2021. In 2021, the India-based provider works in over 70 countries with more than 400 clients, including the NIST, NASA, and Wells Fargo.

Software 139

Software Computers and Electronics Marketing Mobile 139

Security Affairs

NOVEMBER 5, 2021

The attacks spotted by Cisco Talos were carried out by a Babuk ransomware affiliate tracked as Tortilla that has been active since at least July 2021. 229 @58_158_177_102 @sugimu_sec pic.twitter.com/LcuNw88fOo — TG Soft (@VirITeXplorer) October 14, 2021. The ransomware maybe born from the leaked #Babuk code. Pierluigi Paganini.

Ransomware 145

Ransomware Backups Encryption DNS 145

eSecurity Planet

JULY 30, 2021

Express Micro-Tunnels have built-in failover and don’t require DNS resolution. Secure IPsec tunnels are used between CoI endpoints that encrypt data from end-to-end; outsiders cannot gain access into the CoI, and data cannot be exfiltrated out. Prevents man-in-the-middle attacks by encrypting data-in-motion.

Software 130

Software Architecture Technology Risk 130

SecureList

APRIL 27, 2021

This is our latest installment, focusing on activities that we observed during Q1 2021. In parallel, Volexity also reported the same Exchange zero-days being in use in early 2021. The contents are disguised as GIF image files, but contain encrypted commands from the C2 server and command execution results.

Malware 145

Malware Government Spyware Social Engineering 145

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. However, when revisiting these metrics, we noticed that this changed in the beginning of 2021.

Ransomware 145

Ransomware DNS Encryption Backups 145

eSecurity Planet

NOVEMBER 18, 2021

The Clearswift solution incorporates inbound threat protection (Avira, Sophos or Kaspersky antivirus ), an optional sandbox feature, data loss prevention technology to remove threats from messages and files, a multi-layer spam defence mechanism (including SPF, DKIM, DMARC), multiple encryption options, and advanced content filtering features.

Phishing 125

Phishing Malware Engineering Ransomware 125

SecureList

MARCH 10, 2021

After the user starts the program, it changes the DNS settings on the device so that all domains are resolved through the attackers’ servers, which, in turn, prevent users from accessing certain antivirus sites, such as Malwarebytes.com. Updater.exe code snippet containing the encrypted address. Patched.netyyk. transmissionbt[.]org.

DNS 145

DNS Antivirus Malware Encryption 145

Troy Hunt

JULY 21, 2021

— Troy Hunt (@troyhunt) July 19, 2021 The result of the poll is crystal clear but what's much less clear is the answers to the other questions above. Not only do they control the access rights to the mailbox, they also control DNS and MX records therefore they control the routing of emails.

Accountability 364

Accountability Data breaches Government InfoSec 364

SecureList

JANUARY 28, 2021

How are governments and enterprises going to react to this in 2021? Apple has publicly clashed with Facebook claiming it has to protect its users’ privacy, while the latter is wrestling with regulators to implement end-to-end encryption in its messaging apps. However, private companies are not really keen on sharing it.

Marketing 94

Marketing Data collection Government Encryption 94

SecureList

SEPTEMBER 29, 2021

In March 2021, FireEye and Microsoft released additional information about the second-stage malware used during the campaign, Sunshuttle (aka GoldMax). Later in May 2021, Microsoft also attributed spear-phishing campaign impersonating a US-based organization to Nobelium. DNS hijacking. January 13-14, 2021. mail.invest.

DNS 141

DNS Malware Engineering Encryption 141

McAfee

DECEMBER 22, 2021

CVE-2021-44228 – Apache Releases Log4j Version 2.15.0 A full technical analysis can be found here: McAfee Advanced Threat Research: Log4Shell Vulnerability is the Coal in our Stocking for 2021. KB95091: McAfee Enterprise coverage for Apache Log4j CVE-2021-44228 Remote Code Execution. Attack Chain and Defensive Architecture.

Malware 98

Malware Risk Internet Internet 98

Hacker Combat

JULY 5, 2021

Further, it also matches the two variants in how the malware executes file encryption and secures command-line disputes. ” Still, unlike FiveHands and HelloKitty, the new ransomware variant relies on a Go-based packer that encrypts its C++ malicious software payload. version, launched in February 2021.

Ransomware 133

Ransomware DNS Software Encryption 133

Security Affairs

JUNE 24, 2024

For secure communication, operators employ DNS/ICMP tunneling, WSS, and QUIC protocols. The backdoor serializes, encrypts, archives, and sends the collected data to a designated server that stores compromised data. The communication between GoRed and its C2 server relies on the RPC protocol.

Cybercrime 117

Cybercrime Telecommunications DNS Technology 117

Security Affairs

JANUARY 20, 2022

. “The FBI first learned of Diavol ransomware in October 2021. Diavol encrypts files solely using an RSA encryption key, and its code is capable of prioritizing file types to encrypt based on a pre-configured list of extensions defined by the attacker. ” continues the report.

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Ransomware Banking Malware Encryption 129

SecureList

JUNE 1, 2023

Optional: decrypt the backup If the owner of the device has set up encryption for the backup previously, the backup copy will be encrypted. These can be discovered in netflow data enriched with DNS/TLS host information, or PCAP dumps: Legitimate network interaction with the iMessage service, usually using the domain names *.ess.apple.com

Malware 145

Malware Backups Mobile DNS 145

eSecurity Planet

SEPTEMBER 2, 2021

These malicious encryption attacks that take your data hostage are the most financially harmful attacks for companies. Ransomware attacks have been surging in 2021, with the highest-profile one the Colonial Pipeline attack that nearly shut down the U.S. It’s not uncommon for most data to remain encrypted or corrupted.

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Ransomware DNS Small Business Authentication 128

Security Affairs

FEBRUARY 4, 2021

On January 25, 2021, researchers at 360 netlab detected a suspicious ELF file, initially attributed to Mirai , but that later revealed his nature, a new bot tracked as Matryosh. “On January 25, 2021, 360 netlab BotMon system labeled a suspicious ELF file as Mirai, but the network traffic did not match Mirai’s characteristics.

DDOS 139

DDOS DNS Antivirus Malware 139

Security Affairs

FEBRUARY 5, 2021

In January 2021, the cybercrime gang launched a new campaign targeting Kubernetes environments with the Hildegard malware, Palo Alto Networks warns. The malicious code also leverages other techniques to avoid detection, for example it modifies the system DNS resolvers and uses Google’s public DNS servers to bypass DNS monitoring tools.

Malware 118

Malware DNS Cryptocurrency Internet 118

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. Further reading: Top Vulnerability Management Tools for 2021. A New Variant of Cobalt Strike.

DNS 119

DNS Malware Software Security Awareness 119

Security Affairs

JANUARY 29, 2023

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DNS 98

DNS Data breaches Hacking Backups 98

Security Affairs

AUGUST 18, 2021

The Diavol ransomware was compiled with Microsoft Visual C/C++ Compiler, it uses user-mode Asynchronous Procedure Calls (APCs) without symmetric encryption algorithm for encryption, which has worse performance compared to symmetric algorithms. Anchor DNS ), except for the username field. reads the analysis published by Fortinet.

Ransomware 103

Ransomware DNS Cybercrime Malware 103

Fox IT

JUNE 29, 2022

Public information about this malware was first published on 6 January 2021 by our partner ThreatFabric ( [link] ). March 2021: New countries and improvements on distribution campaigns [Flubot versions 3.4-3.7]. In fact, we can see a new version ( 3.6 ) customized for targeting victims in Germany in March 18, 2021.

Banking 97

Banking Malware DNS Encryption 97

Security Affairs

JULY 14, 2021

We have observed malicious binaries use openssl with base64, Advanced Encryption Standard (AES), CBC (Cipher Block Chaining) to thwart security scanners in the format as shown below: openssl enc -aes-256-cbc -d -A -base64 -pass pass:<> Curl. Bash scripts invoking encrypted Zip file. Bash scripts decoding an encrypted blob.

Adware 131

Adware Encryption Malware Passwords 131

SecureList

SEPTEMBER 2, 2021

The infection chain of recent QakBot releases (2020-2021 variants) is as follows: The user receives a phishing email with a ZIP attachment containing an Office document with embedded macros, the document itself or a link to download malicious document. The loaded payload (stager) includes another binary containing encrypted resource modules.

Passwords 145

Passwords Encryption Banking Malware 145

eSecurity Planet

AUGUST 13, 2021

They both use Perfect Forward Secrecy , which automatically changes encryption keys on a recurring basis to prevent data from being decrypted if other components of the key exchange are compromised. Thankfully, ExpressVPN doesn’t log sensitive details like IP addresses, browsing history, traffic destination/metadata, or DNS queries.

VPN 109

VPN Encryption Internet Internet 109

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 112

Encryption DNS Architecture Firewall 112

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. It’s been a while since the last blog post, but we’ve observed some new activities by Roaming Mantis in 2021, and some changes in the Android Trojan Wroba.g (or

Phishing 99

Phishing DNS Mobile Malware 99

Security Affairs

MAY 15, 2023

“Symantec researchers observed it being used in some activity in 2020 and 2021, as well as this more recent campaign, which continued into the first quarter of 2023. . “Lancefly’s custom malware, which we have dubbed Merdoor, is a powerful backdoor that appears to have existed since 2018.”

Encryption 98

Encryption DNS Phishing Malware 98

eSecurity Planet

MARCH 25, 2022

As remote desktop solutions are prevalent among IT and managed service providers (MSP), downstream clients can be at risk, as Kaseya experienced in 2021. In November 2021, an unauthorized third party called a Robinhood customer support employee and, through social engineering , gained access to the company’s customer support systems.

VPN 120

VPN Software Authentication Encryption 120

eSecurity Planet

DECEMBER 17, 2021

Also see our picks for Top Cloud Security Companies and Tools of 2021. For the Forrester Wave for Cloud Security Gateways, Broadcom was dubbed a Leader in 2021. For the Forrester Wave for Cloud Security Gateways, Censornet was a Challenger in 2021. Top 10 CASB solutions. Censornet. Forcepoint. iboss Features. Lookout Features.

Risk 141

Risk Firewall Authentication Encryption 141

Malwarebytes

SEPTEMBER 14, 2022

In fact, there were 50% more attack attempts per week on corporate networks globally in 2021 than in 2020. DNS filtering. The next technology you need to prevent cyberattacks is a DNS filter. But first, a little bit about what DNS (domain name system) is. The DNS server, in turn, tells the computer where to go.

Technology 78

Technology DNS Cyber Insurance Insurance 78

eSecurity Planet

FEBRUARY 8, 2021

UDPoS malware, only recently discovered by Forcepoint researchers, poses as a LogMeIn service pack and uses DNS requests to transfer stolen data to a command and control server. Point-to-point encryption: P2PE and tokenization, Miles said, are the one-two punch of an approach to card data security called data devaluation.

Retail 52

Retail Encryption Malware Artificial Intelligence 52

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 111

Internet Internet Telecommunications DNS 111

Security Affairs

AUGUST 29, 2023

The attackers obtained encrypted passwords from NetScaler ADC configuration files, and the decryption key was stored on the ADC appliance. The attackers attempted to verify outbound network connectivity with a ping command and executed host commands for a subnet-wide DNS lookup. Network-segmentation controls blocked this activity too.

VPN 124

VPN Ransomware DNS Malware 124

SecureList

DECEMBER 1, 2023

For most implants, the threat actor uses similar implementations of DLL hijacking (often associated with ShadowPad malware) and memory injection techniques, along with the use of RC4 encryption to hide the payload and evade detection. libssl.dll or libcurl.dll was statically linked to implants to implement encrypted C2 communications.

Malware 138

Malware Ransomware Encryption Energy and Utilities 138