Friday, May 8, 2015
Windows 10 Microsoft Passport (aka Microsoft Next Generation Credential) In Detail » Active Directory Security
At the Microsoft Ignite conference this week, there are several
sessions covering Windows 10 features. One of biggest changes in Windows
10 is the new credential management method and the related “Next
Generation Credential”, now named Microsoft Passport.
There hasn’t been much information on how the new credential system
works, so I challenged myself to gather as much information and
understand it as best as possible before the Microsoft Ignite conference
ends this week. This post covers my understanding of this (still beta)
technology.
Note that the information in this post is subject to change
(& my misunderstanding). As I gain clarification, I will update this
post.
Traditional Windows Credential Management
Up until Windows 10, when a user logs on, the user’s credentials are verified, hashed, and loaded into LSASS (Local Security Authority Subsystem Service),
a process in protected memory. The user credential data is stored in
LSASS for authenticating the user to network resources without having to
prompt the user for their password. The issue is that up until Windows
8.1, the user’s clear-text password (reversible encryption) is no longer
placed in LSASS, though the user’s NTLM password hash, among others,
are still stored in LSASS. When using Kerberos, the user’s Kerberos
tickets are stored in LSASS. More....
Windows 10 Microsoft Passport (aka Microsoft Next Generation Credential) In Detail » Active Directory Security
Know your Windows Processes or Die Trying | System Forensics
I have been talking with quite a few people lately tasked with
“security” inside their organizations and couldn’t help but notice their
lack of understanding when it came to Windows process information.
I figured if the people I have talked with don’t understand then
there are probably a lot more people that don’t understand. I’m guessing
quite a few people that consider themselves “experts” as well.
I decided to write this post in an effort to help the individuals
that may not have the knowledge, free time, training budgets, etc. to
explore Windows processes. For about $50 – $75 (few books) and some free
time you can learn pretty much everything needed to know about Windows
processes.
My goal isn’t to dive very deep into each of the processes. I figured
a bulleted “cheat sheet” vs. wordy descriptions will be best for my
intended audience.
The people that want to dive deeper can buy themselves a copy of
Windows Internals, 6th Edition Part I and II, fire up Process
Explorer/Process Hacker, start reading the great documentation by the
Volatility team (references below).
Know your Windows Processes or Die Trying | System Forensics
“security” inside their organizations and couldn’t help but notice their
lack of understanding when it came to Windows process information.
I figured if the people I have talked with don’t understand then
there are probably a lot more people that don’t understand. I’m guessing
quite a few people that consider themselves “experts” as well.
I decided to write this post in an effort to help the individuals
that may not have the knowledge, free time, training budgets, etc. to
explore Windows processes. For about $50 – $75 (few books) and some free
time you can learn pretty much everything needed to know about Windows
processes.
My goal isn’t to dive very deep into each of the processes. I figured
a bulleted “cheat sheet” vs. wordy descriptions will be best for my
intended audience.
The people that want to dive deeper can buy themselves a copy of
Windows Internals, 6th Edition Part I and II, fire up Process
Explorer/Process Hacker, start reading the great documentation by the
Volatility team (references below).
Know your Windows Processes or Die Trying | System Forensics
Wednesday, May 6, 2015
TeslaCrypt and Alpha Crypt Ransomware Information Guide and FAQ
TeslaCrypt and Alpha Crypt Ransomware Information Guide and FAQ
TeslaCrypt and Alpha Crypt are
file-encrypting ransomware programs that target all version of Windows
including Windows XP, Windows Vista, Windows 7, and Windows 8.
TeslaCrypt was first released around the end of February 2015 and Alpha
Crypt was released at the end of April 2015. When you are first infected
with TeslaCrypt or Alpha Crypt they will scan your computer for data
files and encrypt them using AES encryption so they are no longer able
to be opened. Once the infection has encrypted the data files on all of
your computer drive letters it will display an application that contains
instructions on how to get your files back. These instructions include a
link to a Decryption Service site,
which will inform you of the current ransom amount, the amount of files
encrypted, and instructions on how to make your payment. The ransom
cost starts at around $500 USD and is payable via bitcoins. The bitcoin
address that you submit payment to will be different for every victim.
When TeslaCrypt or Alpha Crypt are first installed on your computer they will create a random named executable in the %AppData% folder. This executable will be launched and begin to scan all the drive letters on your computer for data files to encrypt. If a a supported data file is detected it will encrypt it and then append a new extension to the filename based on the particular variant you are infected with. For TeslaCrypt, the extension .ECC will be appended and for Alpha Crypt the extension .EZZ will be appended to filenames.
What is TeslaCrypt and AlphaCrypt?
TeslaCrypt and Alpha Crypt are
file-encrypting ransomware programs that target all version of Windows
including Windows XP, Windows Vista, Windows 7, and Windows 8.
TeslaCrypt was first released around the end of February 2015 and Alpha
Crypt was released at the end of April 2015. When you are first infected
with TeslaCrypt or Alpha Crypt they will scan your computer for data
files and encrypt them using AES encryption so they are no longer able
to be opened. Once the infection has encrypted the data files on all of
your computer drive letters it will display an application that contains
instructions on how to get your files back. These instructions include a
link to a Decryption Service site,
which will inform you of the current ransom amount, the amount of files
encrypted, and instructions on how to make your payment. The ransom
cost starts at around $500 USD and is payable via bitcoins. The bitcoin
address that you submit payment to will be different for every victim.When TeslaCrypt or Alpha Crypt are first installed on your computer they will create a random named executable in the %AppData% folder. This executable will be launched and begin to scan all the drive letters on your computer for data files to encrypt. If a a supported data file is detected it will encrypt it and then append a new extension to the filename based on the particular variant you are infected with. For TeslaCrypt, the extension .ECC will be appended and for Alpha Crypt the extension .EZZ will be appended to filenames.
Haifei's random thoughts: Integrating Outdated Flash is a Bad Idea, Even Wor...
Haifei's random thoughts: Integrating Outdated Flash is a Bad Idea, Even Wor...: Shining the Light on the Security of Customized Browsers Used in China When I traveled in China last time, I was quite surprised that the...
Andromeda/Gamarue bot loves JSON too (new versions details) | eternal-todo.com
Andromeda/Gamarue bot loves JSON too (new versions details) | eternal-todo.com
After my last post about Andromeda different updates related to version 2.07 and 2.08 appeared. Mostly, Fortinet was talking about the version 2.7 features and the new anti-analysis tricks of version 2.08. After that, Kimberly was also mentioning version 2.09 in his blog
but I have not seen too many details about the latest versions of
Andromeda. This is a summary of the interesting details about the newer
versions.
After my last post about Andromeda different updates related to version 2.07 and 2.08 appeared. Mostly, Fortinet was talking about the version 2.7 features and the new anti-analysis tricks of version 2.08. After that, Kimberly was also mentioning version 2.09 in his blog
but I have not seen too many details about the latest versions of
Andromeda. This is a summary of the interesting details about the newer
versions.
Tuesday, May 5, 2015
CyberGuerrilla soApboX » #ro0ted #OpNewblood What the blackhats dont want you to know: Analyzing the ZeuS bot Part 2
CyberGuerrilla soApboX » #ro0ted #OpNewblood What the blackhats dont want you to know: Analyzing the ZeuS bot Part 2
Okay start up REMnux and sign in as root.
Okay start up REMnux and sign in as root.
We start with the command like in the previous tutorial:
type: volatility -f ‘zeus.vmem’ imageinfo
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