Fox IT

JUNE 2, 2020

It should be noted that in very early versions of the loader binaries (2342C736572AB7448EF8DA2540CDBF0BAE72625E41DAB8FFF58866413854CA5C), the developers were using the Windows BITS functionality in order to download the backdoor. Before proceeding to the technical analysis part, it is worth mentioning that the strings are not encrypted.

Malware 48

Malware DNS Architecture Backups 48

SecureList

JUNE 1, 2023

Since it is impossible to inspect modern iOS devices from the inside, we created offline backups of the devices in question, inspected them using the Mobile Verification Toolkit’s mvt-ios and discovered traces of compromise. Install MVT Once the backup is ready, it has to be processed by the Mobile Verification Toolkit.

Malware 145

Malware Backups Mobile DNS 145

SecureList

JANUARY 13, 2022

After sending a beacon to the C2 server, the malware collects general system information, sending it after AES encryption. The persistence backdoor #2 is used to silently run an additional executable payload that is received over an encrypted channel from a remote server. domainhost.dynamic-dns[.]net. domainhost.dynamic-dns[.]net.

Cryptocurrency 126

Cryptocurrency Malware Accountability Banking 126

Fox IT

JANUARY 12, 2021

Besides using the Cobalt Strike beacon, the adversary also searches for VPN and firewall configs, possibly to function as a backup access into the network. Figure 1: Example of a download location for GetHttpsInfo.exe. The adversary compresses and encrypts the data by using WinRAR from the command-line. r = recurse subfolders.

VPN 68

VPN Accountability Passwords DNS 68

eSecurity Planet

MARCH 22, 2023

Similarly, spoofed domain name system (DNS) and IP addresses can redirect users from legitimate connections to dangerous and malicious websites. Additional protection may be deployed using browser security, DNS security, or secure browsers to protect endpoints from malicious websites. Critical resources need additional protection.

Firewall 104

Firewall Network Security Penetration Testing Encryption 104

eSecurity Planet

SEPTEMBER 29, 2021

But more and more, organizations need to plan for the possibility that the worst may happen – and that involves ransomware-proof backups and ransomware removal tools and services. Checks downloads, installs, and executables for viruses and threats. Free download that runs on the desktop. Automatic, secure 50 GB cloud backup.

Ransomware 107

Ransomware VPN Backups Malware 107

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). Backdoors, whose feature set is typically limited to reconnaissance, command execution, file download and file upload.

Malware 89

Malware DNS Government Software 89

eSecurity Planet

FEBRUARY 16, 2021

Adware, also known as malvertising , is a type of malware that downloads or displays advertisements to the user interface. Users sometimes unknowingly infect themselves with adware installed by default when they download and install other applications. Most users are familiar with adware in the form of unclosable browser pop-ups.

Malware 105

Malware Adware Spyware Antivirus 105

eSecurity Planet

MAY 28, 2021

Ransomware: Encryption, Exfiltration, and Extortion. Ransomware perpetrators of the past presented a problem of availability through encryption. Using legitimate file-sharing tools like RClone and MegaCmdServer to mask activity, malicious actors can go undetected while downloading your network’s data. Old way New way.

Software 108

Software Firmware DNS VPN 108

McAfee

SEPTEMBER 14, 2021

In particular, we saw the following hardcoded value that might be another payload being downloaded: sery.brushupdata.com/CE1BC21B4340FEC2B8663B69. The PlugX families we observed used DNS [ T1071.001 ] [ T1071.004 ] as the transport channel for C2 traffic, in particular TXT queries. Application layer protocol: DNS.

Malware 144

Malware DNS Accountability Manufacturing 144

Cisco Security

DECEMBER 14, 2022

release delivers more features to the three key outcomes: see and detect more threats faster in an increasingly encrypted environment, simplify operations, and lower the TCO of our security solution. Further enhancements to Cisco’s Encrypted Visibility Engine (EVE), first launched a year ago in 7.1, See More – Detect Faster.

Firewall 139

Firewall VPN Encryption DNS 139

SecureList

JUNE 15, 2022

Complex attacks almost invariably feature several phases, such as reconnaissance, initial access to the infrastructure, gaining access to target systems and/or privileges, and the actual malicious acts (data theft, destruction or encryption, etc.). Offers grouped by price category ( download ). Screenshot translation. more in pm!

VPN 89

VPN Accountability Ransomware Encryption 89

Veracode Security

NOVEMBER 19, 2020

Researchers found that TrickBot developers created a tool called anchor_dns which uses a single-byte X0R cipher to obfuscate communications and, once de-obfuscated, is discoverable in DNS request traffic. From there, the executable file downloads modules from command and control servers (C2s) and places them into the host???

Healthcare 52

Healthcare Ransomware Phishing Social Engineering 52