Tag APFS

InfoSec Week 13, 2018

The city of Atlanta government has become the victim of a ransomware attack. The ransomware message demanding a payment of $6,800 to unlock each computer or $51,000 to provide all the keys for affected systems. Employees were told to turn off their computers.
https://arstechnica.com/information-technology/2018/03/atlanta-city-government-systems-down-due-to-ransomware-attack/

The academic researchers have discovered a new side-channel attack method called BranchScope that can be launched against devices with Intel processors and demonstrated it against an SGX enclave. The patches released in response to the Spectre and Meltdown vulnerabilities might not prevent these types of attacks.
http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf

Good insight into the ransomware business and how it operates, how it transfers Bitcoin funds, with data gathered over a period of two years.
The paper is named "Tracking Ransomware End-to-end"
https://www.elie.net/static/files/tracking-ransomware-end-to-end/tracking-ransomware-end-to-end.pdf

Mozilla has created a Facebook Container extension for Firefox, which should enable users to protect their online habits by sandboxing Facebook webpage.
https://blog.mozilla.org/firefox/facebook-container-extension/

Interesting article about the North Korean army of hackers operating abroad with the mission to earn money by any means necessary.
https://www.bloomberg.com/news/features/2018-02-07/inside-kim-jong-un-s-hacker-army

Unified logs in the MacOS High Sierra (up to 10.13.3) show the plain text password for APFS encrypted external volumes via disk utility application.
https://www.mac4n6.com/blog/2018/3/21/uh-oh-unified-logs-in-high-sierra-1013-show-plaintext-password-for-apfs-encrypted-external-volumes-via-disk-utilityapp

SophosLabs researchers analyzed a new Android malware which is pretending to he a legitimate QR reader application, but actually is monetizing users by showing them a flood of full-screen advertisements. More than 500k apps were installed.
https://nakedsecurity.sophos.com/2018/03/23/crooks-infiltrate-google-play-with-malware-lurking-in-qr-reading-utilities/

Brian Krebs analyzed the social network behind the recently famous Coinhive javascript cryptocurrency mining business.
https://krebsonsecurity.com/2018/03/who-and-what-is-coinhive/

CloudFlare published a Merkle Town dashboard, Certificate Transparency logs visualization tool.
https://blog.cloudflare.com/a-tour-through-merkle-town-cloudflares-ct-ecosystem-dashboard/

Facebook is tracking users' phone call information via their Android Messenger application.
https://twitter.com/i/web/status/977325434030428160

There are multiple critical vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp

New version (4.0) of the most secure operating system on the planet - Qubes OS was released.
https://www.qubes-os.org/news/2018/03/28/qubes-40/

InfoSec Week 40, 2017

There is a great probability that if you used Outlook’s S/MIME encryption in the past 6 months, plaintext of your emails was leaked to the mail exchange because of Outlook S/MIME CVE-2017-11776 vulnerability.
https://www.sec-consult.com/en/blog/2017/10/fake-crypto-microsoft-outlook-smime-cleartext-disclosure-cve-2017-11776/index.html

The Kaspersky anti-virus was allegedly stealing NSA secrets using a silent signature mode that detected classified documents. Israel hacked the Kaspersky, and notified the NSA.
https://www.washingtonpost.com/world/national-security/israel-hacked-kaspersky-then-tipped-the-nsa-that-its-tools-had-been-breached/2017/10/10/d48ce774-aa95-11e7-850e-2bdd1236be5d_story.html
https://www.wsj.com/articles/russian-hackers-scanned-networks-world-wide-for-secret-u-s-data-1507743874

A custom OxygenOS Android fork that comes installed on all OnePlus smartphones, is tracking users, allowing OnePlus to connect each phone to its customer.
https://www.chrisdcmoore.co.uk/post/oneplus-analytics/

Chromebooks and Chromeboxes are affected by a bug in certain Infineon Trusted Platform Module (TPM) firmware versions. RSA keys generated by the TPM being vulnerable to a computationally expensive attacks. Targeted attacks are possible.
https://sites.google.com/a/chromium.org/dev/chromium-os/tpm_firmware_update

KovCoreG hacking group used advertising network on Pornhub to redirect users to a fake browser update websites that installed malware.
https://www.proofpoint.com/us/threat-insight/post/kovter-group-malvertising-campaign-exposes-millions-potential-ad-fraud-malware

Apple released a security patch for macOS High Sierra 10.13 to fix vulnerabilities in the Apple file system (APFS) volumes and Keychain software. The patch also addresses a flaw in the Apple file system that exposes encrypted drive’s password in the hint box.
http://securityaffairs.co/wordpress/63896/hacking/apple-file-system-flaw.html

Yet another part of the reverse engineering blog post series analyzing TrickBot with IDA.
https://qmemcpy.io/post/reverse-engineering-malware-trickbot-part-3-core

Keybase has launched a nice new feature - encrypted Git. There are no services like website, pull requests, issue tracking or wiki, just simple git. Encrypted.
https://keybase.io/blog/encrypted-git-for-everyone

InfoSec Week 16, 2017

Crooks are already using recently leaked NSA hack tools to exploit thousands of unpatched Windows machines.
https://www.theregister.co.uk/2017/04/21/windows_hacked_nsa_shadow_brokers/

Bosch Drivelog Connector dongle could allow hackers to halt the engine.
https://argus-sec.com/remote-attack-bosch-drivelog-connector-dongle/

Android MilkyDoor malware lets attackers infiltrate phone's connected networks via Secure Shell (SSH) tunnels.
http://blog.trendmicro.com/trendlabs-security-intelligence/dresscode-android-malware-finds-successor-milkydoor/

The Hajime IoT worm is hardening IoT devices (closing open ports for now) to lock out other IoT malware. The code is not weaponised, contains only white hat's message.
https://www.symantec.com/connect/blogs/hajime-worm-battles-mirai-control-internet-things

The guy found out how to trade other customers' stocks due to the bad implementation of the iPhone trading app.
https://privacylog.blogspot.ch/2017/04/what-happens-when-you-send-zero-day-to.html

NVIDIA is shipping node.js under the name "NVIDIA Web Helper.exe". As it's signed by the NVIDIA key, the application is whitelisted by Microsoft AppLocker, and can be used for bypassing protection.
http://blog.sec-consult.com/2017/04/application-whitelisting-application.html

Criminals are spreading financial malware using spam emails disguised as a payment confirmation email from Delta Air. Looks genuine. https://heimdalsecurity.com/blog/hancitor-malware-delta-airlines/

Some darkmarket real IP addresses can be found through the Shodan search.
"RAMP (Russian drug market, server in Russia) and Hydra (international drug market, server in Germany) are leaking.Anyone see other big ones?"
https://twitter.com/HowellONeill/status/855550034741309440 https://twitter.com/AlecMuffett/status/855542397165502464

Nice blog about the common mistakes done by developers when using encryption \ secrets.
https://littlemaninmyhead.wordpress.com/2017/04/22/top-10-developer-crypto-mistakes/

Apple File System (APFS), introduced in March 2017, reverse engineered by Jonas Plum.
https://blog.cugu.eu/post/apfs/

WikiLeaks publishes the User Guide for CIA's "Weeping Angel" tool - an implant designed for Samsung F Series Smart Televisions. Based on the "Extending" tool from MI5/BTSS, the implant is designed to record audio from the built-in microphone and egress or store the data.
https://wikileaks.org/vault7/#Weeping Angel

Funny research paper co-authored by Daniel J. Bernstein, "Post-quantum RSA", explores potential "parameters for which key generation, encryption, decryption, signing, and verification are feasible on today’s computers while all known attacks are infeasible, even assuming highly scalable quantum computers".
Funny part is that the actual parameters are "really" practical. Example: "For the 2Tb (256GB) encryption, the longest multiplication took 13 hours, modular reduction took 40 hours, and in total encryption took a little over 100 hours."
https://cr.yp.to/papers/pqrsa-20170419.pdf

A local privilege escalation via LightDM found in Ubuntu versions 16.10 / 16.04 LTS.
http://seclists.org/fulldisclosure/2017/Apr/73

fake sandbox processes (FSP) - script will simulate fake processes of analysis sandbox/VM software that some malware will try to avoid. Windows only. https://github.com/Aperture-Diversion/fake-sandbox