Calculating the Benefits of the Advanced Encryption Standard

Schneier on Security

NIST has completed a study -- it was published last year, but I just saw it recently -- calculating the costs and benefits of the Advanced Encryption Standard. Still, I like seeing this kind of analysis about security infrastructure.

EventBot, a new Android mobile targets financial institutions across Europe

Security Affairs

” reads the analysis published by Cybereason. The malware also downloads the Command-and-control (C2) URLs, C2 communication is encrypted using Base64, RC4, and Curve25519. .

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New PyLocky Ransomware stands out for anti-machine learning capability

Security Affairs

” reads hte analysis published by Trend Micro. ” Experts warn of its ability to bypass static analysis methods due to the combined use of Inno Setup Installer and PyInstaller. exe will drop malware components — several C++ and Python libraries and the Python 2.7

JSWorm: The 4th Version of the Infamous Ransomware

Security Affairs

Technical Analysis. JSWorm encrypts all the user files appending a new extension to their name. During the encryption phase, the ransomware creates an HTML Application “JSWRM-DECRYPT.hta” in each folder it encounters. Figure 3: Extensions excluded from encryption.

OceanLotus APT group leverages a steganography-based loader to deliver backdoors

Security Affairs

“While continuing to monitor activity of the OceanLotus APT Group, BlackBerry Cylance researchers uncovered a novel payload loader that utilizes steganography to read an encrypted payload concealed within a.png image file.”

Victims of Pylocky ransomware can decrypt their files for free

Security Affairs

In this phase, the ransomware sends to the command and control server information on the encryption process, including a string that contains the Initialization Vector (IV) and a random password used by the ransomware to encrypt the files.

Buran ransomware-as-a-service continues to improve

Security Affairs

Buran is advertised as a stable malware that uses an offline cryptoclocker , 24/7 support, global and session keys, and has no third-party dependencies such as libraries. ” reads the analysis published by McAfee. ” concludes the analysis.

Roboto, a new P2P botnet targets Linux Webmin servers

Security Affairs

” reads the analysis published by 360 Netlab. One of the addresses disguised the Bot sample as a Google font library “ roboto. ” reads the analysis. Additional technical details such as IoCs are included in the analysis published by the experts.

Crooks target Healthcare facilities involved in Coronavirus containment with Ransomware

Security Affairs

” reads the analysis published by PaloAlto Networks. ” The messages use a weaponized rich text format (RTF) attachment that exploits the CVE-2012-0158 buffer overflow in Microsoft’s ListView / TreeView ActiveX controls in MSCOMCTL.OCX library.

North Korea-linked Lazarus APT uses a Mac variant of the Dacls RAT

Security Affairs

” reads the analysis published by the researchers. The Mac version uses the same AES key and IV as the Linux variant to encrypt and decrypt the config file. “Both Mac and Linux variants use the WolfSSL library for SSL communications.

Cr1ptT0r Ransomware targets D-Link NAS Devices and embedded systems

Security Affairs

Once the malware has infected a system drops two plain text files, one is a ransom note called “_FILES_ENCRYPTED_README.txt,” which gives information to the victim on what has happened and instruction to pay the ransom.

Kaiji, a new Linux malware targets IoT devices in the wild

Security Affairs

” reads the analysis published by Intezer. ” continues the analysis. Security researchers spotted a new piece of DDoS bot dubbed Kaiji that is targeting IoT devices via SSH brute-force attacks.

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Attor malware was developed by one of the most sophisticated espionage groups

Security Affairs

” reads the analysis published by ESET. The malware implements a modular structure with a dispatcher and loadable plugins, all of which are implemented as dynamic-link libraries (DLLs). The Attor malware makes sophisticated use of encryption to hide its components.

Kaspersky found malware in popular CamScanner app. Remove it now from your phone!

Security Affairs

The module was hidden in a 3rd-party advertising library that the author of the app recently was introduced. “After analyzing the app, we saw an advertising library in it that contains a malicious dropper component. ” reads the analysis published by Kaspersky.

Iran-linked group Cobalt Dickens hit over 60 universities worldwide

Security Affairs

This operation is similar to the threat group’s August 2018 campaign , using compromised university resources to send library-themed phishing emails.” ” reads the analysis published by Secureworks.

The Long Run of Shade Ransomware

Security Affairs

Technical analysis. This file acts as downloader in the infection chain, using a series of hard-coded server addresses, It heavily rely on obfuscation and encryption to avoid the antimalware detection. Shade encrypts all the user files using an AES encryption scheme.

Sofacy’s Zepakab Downloader Spotted In-The-Wild

Security Affairs

The sample has been initially identified by an Italian independent security researcher, who warned the InfoSec community and shared the binary for further analysis. Technical Analysis.

Infecting Canon EOS DSLR camera with ransomware over the air

Security Affairs

Searching online the expert first found an encrypted firmware, he found on a forum a Portable ROM Dumper , (a custom firmware update file that once loaded, dumps the memory of the camera into the SD Card) that allowed him to dump the camera’s firmware and load it into his disassembler (IDA Pro).

China-linked APT41 group targets US-Based Research University

Security Affairs

“HIGHNOON is a backdoor that consists of multiple components, including a loader, dynamic-link library (DLL), and a rootkit. ” reads the analysis published by FireEye. Security experts at FireEye observed Chinese APT41 APT group targeting a web server at a U.S.-based

Nodersok malware delivery campaign relies on advanced techniques

Security Affairs

” reads the analysis published by Microsoft. One of the second-stage instances of PowerShell downloads the legitimate node.exe tool, while another drops WinDivert packet capture library components. based payload, and a bunch of encrypted files.

Commodity Malware Reborn: The AgentTesla “Total Oil” themed Campaign

Security Affairs

Technical Analysis. The dropped file payload is a.NET executable embedding some anti-analysis tricks. This way, the control flow is switched to the delegated method which actually points to a DLL containing the anti-analysis logic.

Exclusive: Pakistan and India to armaments: Operation Transparent Tribe is back 4 years later

Security Affairs

So, Cybaze-Yoroi ZLab team decided to dive deep into technical analysis. Technical Analysis. The two dll are legit windows library and are used in support of the malicious behaviour. The downloaded code has been encrypted through the Rijndael algorithm with a hard-coded key.

Taking down Gooligan: part 2 — inner workings

Elie

This post provides an in-depth analysis of the inner workings of Gooligan, the infamous Android OAuth stealing botnet. This file is encrypted with a hardcoded [XOR encryption] function. Encrypting malicious payload is a very old malware trick that has been used by.

Taking down Gooligan: part 1 — overview

Elie

and the analysis of. The second post provides an in-depth analysis of Gooligan’s inner workings and an analysis of its network infrastructure. This APK embedded a secondary hidden/encrypted payload. Play Store app module : This is an injected library that allows the malware to issue commands to the Play store through the Play store app.

CVE-2019-13720 flaw in Chrome exploited in Operation WizardOpium attacks

Security Affairs

The vulnerabilities, tracked as CVE-2019-13720 and CVE-2019-13721, reside respectively in Chrome’s audio component and in the PDFium library. “[$7500][ 1013868 ] High CVE-2019-13721: Use-after-free in PDFium. ” continues the analysis.

Security Affairs newsletter Round 228

Security Affairs

Malware Analysis Sandboxes could expose sensitive data of your organization. A backdoor mechanism found in tens of Ruby libraries. million to allow towns to access encrypted data. A new round of the weekly newsletter arrived! The best news of the week with Security Affairs.

Taking down Gooligan: part 2 — inner workings

Elie

This post provides an in-depth analysis of the inner workings of Gooligan, the infamous Android OAuth stealing botnet. This file is encrypted with a hardcoded [XOR encryption] function. Encrypting malicious payload is a very old malware trick that has been used by.

Analyzing a Danabot Paylaod that is targeting Italy

Security Affairs

Technical Analysis. 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.

Is APT27 Abusing COVID-19 To Attack People ?!

Security Affairs

The following VBScript is run through cscript.exe, It’s an obfuscated and xor-encrypted payload. Taking it on static analysis it will expose three callable functions: DeleteOfficeData ( 0x10001020 ), GetOfficeData ( 0x10001000 ) and EntryPoint 0x100015ac ).

Latest Turla backdoor leverages email PDF attachments as C&C mechanism

Security Affairs

Malware researchers from ESET have conducted a new analysis of a backdoor used by the Russia-linked APT Turla in targeted espionage operations. The new analysis revealed a list of high-profile victims that was previously unknown. ” reads the analysis published by ESET.

Taking down Gooligan: part 1 — overview

Elie

and the analysis of. provides an in-depth analysis of Gooligan’s inner workings and an analysis of its network infrastructure. This APK embedded a secondary hidden/encrypted payload.

How Ursnif Evolves to Keep Threatening Italy

Security Affairs

For instance, the latest waves increased their target selectivity abilities by implementing various country-checks and their anti-analysis capabilities through heavy code obfuscation. Technical Analysis. During the analysis, the first two C2s, filomilalno[.club

Operation Red Signature – South Korean Firms victims of a supply chain attack

Security Affairs

” reads the analysis published by TrendMicro. ” continues the analysis. This dynamic-link library (DLL) is responsible for decrypting the encrypted rcview.log file and executing it in memory. Supply Chain Attack Hits South Korean Firms.

Y Soft Validated as a Digital Transformation Leader in Quocirca Print 2025 Report

Document Imaging Report

With a growing library of 3 rd party connectors, organizations have a secure way to lessen use of paper and eliminate human errors associated with paper processing or basic scan to email. Predictive analysis (23%).

[SI-LAB] FlawedAmmyy Leveraging Undetected XLM Macros as an Infection Vehicle

Security Affairs

For more details on this finding see the Technical Analysis below. Technical Analysis. However, as already mentioned at the beginning of the technical analysis, SI-LAB team obtained two types of files, namely xls and doc archives.

[SI-LAB] EMOTET spread in Chile impacted hundreds of users and targeted financial and banking services

Security Affairs

That file was delivered via malscam campaigns around the world and its source-code is obfuscated in order to evade antivirus detection and complicate its analysis. For more details and complete analysis of this malicious campaign see the Technical Analysis below.

LooCipher: The New Infernal Ransomware

Security Affairs

Technical Analysis. Once run, it starts the encryption of all the victim’s files, except for the system and programs folders: “Program Files” , “Program Files (x86)” , “Windows”. Actions during encryption phase.

The debate on the Data Protection Bill in the House of Lords

Data Protector

It will ensure that libraries can continue to archive material, that journalists can continue to enjoy the freedoms that we cherish in this country, and that the criminal justice system can continue to keep us safe. What follows below is an edited version of the debate in the House of Lords of the Second Reading of the Data Protection Bill, held on 10 October.

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