What a fantastic, knowledgable week it was here at GCFLearnFree.org! You can find all of our free lessons and tutorials...
Posted by GCFLearnFree.org on Friday, January 10, 2020
Friday, January 10, 2020
tribute to the Australian Firefighters 2020
A tribute to the Australian Firefighters 2020https://www.facebook.com/TheSoloShow/videos/3081204695222871/
A Tribute to the Australian Firefighters 🇦🇺
Posted by The Solo Show on Tuesday, January 7, 2020
Tuesday, January 7, 2020
Monday, January 6, 2020
Φωτογραφίες από την κόλαση!! #Australia
Φωτογραφίες από την κόλαση!! #Αustralia αλλά εύκολα μπορεί να τύχει σε ολους !! #Ματι #Κινετα πάρτε το στα σοβαρά όλοι...
Posted by Stelios Dasos on Monday, January 6, 2020
Thursday, May 28, 2015
Locker Ransomware Support Topic - General Security
This is the support topic for the Locker Ransomware.
The Locker ransomware has a very large install base that has affected
many people globally. As this topic is already quite large, and will
likely grow larger, this first post will be used to post any new
information as it becomes available.
The
Locker ransomware is a computer infection that silently runs on a
victim's computer until May 25 Midnight local time at which point it
became active. Once active, it will begin to encrypt the data files on
the computer with what appears to be RSA encryption. When encrypting the
data files it will not change the extension of the
file. Therefore, the only way to determine if the file is encrypted is
by trying to open it and being told that the file is corrupt or not
usable.
After the Locker ransomware encrypts your data it will
delete your shadow volume copies and then display the Locker interface.
This interface will be titled Locker and then a random version number.
This version number does not appear to have any significance. Some
example titles are Locker v1.7, Locker v3.5.3, Locker V2.16, and Locker
V5.52. This Locker screen will give you information on how to pay the
ransom, your unique bitcoin address to send the ransom to, a list of
encrypted files, and a page to check the status of your payment. More.....
Locker Ransomware Support Topic - General Security
The Locker ransomware has a very large install base that has affected
many people globally. As this topic is already quite large, and will
likely grow larger, this first post will be used to post any new
information as it becomes available.
Summary
The
Locker ransomware is a computer infection that silently runs on a
victim's computer until May 25 Midnight local time at which point it
became active. Once active, it will begin to encrypt the data files on
the computer with what appears to be RSA encryption. When encrypting the
data files it will not change the extension of the
file. Therefore, the only way to determine if the file is encrypted is
by trying to open it and being told that the file is corrupt or not
usable.
After the Locker ransomware encrypts your data it will
delete your shadow volume copies and then display the Locker interface.
This interface will be titled Locker and then a random version number.
This version number does not appear to have any significance. Some
example titles are Locker v1.7, Locker v3.5.3, Locker V2.16, and Locker
V5.52. This Locker screen will give you information on how to pay the
ransom, your unique bitcoin address to send the ransom to, a list of
encrypted files, and a page to check the status of your payment. More.....
Locker Ransomware Support Topic - General Security
Tuesday, May 26, 2015
Locker ransomware hides until midnight on May 25th and then encrypts your data - News
A new ransomware called Locker has been discovered that
once installed lay dormant until midnight local time on May 25th when
it would activate and encrypt your data files. Once your files were
encrypted it would demand .1 bitcoins in order to decrypt your files. If
payment was not made within 72 hours, the ransom price would then
increase to 1 bitcoin. This ransomware is currently widespread with
global targeting. More.....
Locker ransomware hides until midnight on May 25th and then encrypts your data - News
Sunday, May 24, 2015
(UAC) User Assisted Compromise - Room362.com
A number of times during tests I’ve actually run into those mythical creatures called “patched windows machines”. At DerbyCon Chris Gates and I released the “Ask” post module (which I had failed to publish). This module very simply uses the ShellExecute windows function via Railgun with the undocumented (but very well known) operator of ‘runas’. These two lines accomplished that:
(UAC) User Assisted Compromise - Room362.com
(UAC) User Assisted Compromise - Room362.com
Trick me once, ShameOnUAC
ShameOnUAC
When the Cylance SPEAR Team was formed late last year we startedlooking into an area that we had long wanted to study: the potential for
subverting programs during privilege elevation through UAC. We created
proof of concept malware that attacks Windows Explorer, which we dubbed
ShameOnUAC.
ShameOnUAC injects itself into the unprivileged Explorer process,
where it hooks SHELL32!AicLaunchAdminProcess and waits for the user to
ask to run a program as administrator. It then then tampers with the
elevation requests before they're sent to the AppInfo service. (This is a
downside of having an unprivileged process submit elevation requests
for you.)
Here's how UAC works normally:
Trick me once, ShameOnUAC
Installer stuck at 18% when upgrading from Windows 10 (10074 to 10122) - Enterprise Mobility Tips - Site Home - TechNet Blogs
Are you trying to upgrade to Windows 10 preview build 10122 and the
installation hangs at 18%? The following approach unblocked me,
hopefully it works for you too – please let us know in the comments:
installation hangs at 18%? The following approach unblocked me,
hopefully it works for you too – please let us know in the comments:
- Download psexec.exe from sysinternals to e.g. c:\temp
- Open an elevated command prompt
- Execute psexec with the following parameters (try not to copy/paste):
- C:\Temp\psexec.exe –s –i cmd.exe
- A command prompt in the system context should launch:
- More....
Debugging Tutorial Index - Sysnative Forums
!tz and !tzinfo WinDbg Extensions - Thermal Zone ACPI Trip Levels
- Add Windbg (kd>) Commands to Program Default for Dump Files
- Bit Flips
- BlackEnergy 2 (alias BlackEnergy Version 2) Live Debugging
- BSOD Method and Tips
- BSOD Analysis - Getting Started
- BSODs but no Dump Files?
- Collecting User Mode Dumps/ Windows Error Reporting (WER)
- Common BSOD drivers listing
- Device/Driver Objects and Stacks
- Double Fault
- DPCs and APCs
- Exception Codes (NT STATUS Codes)
- Hotfix to create a memory dump without a pagefile (Win7/Server 08 R2)
- How the BSOD actually 'works', why, etc.
- MEMORY_CORRUPTION_STRIDE
- New BSOD codes for Win8
- New BSOD codes for Win8.1
- Page Faults Explained
- Registers (x86)
- More.....
Meet 'Tox': Ransomware for the Rest of Us - McAfee
The packaging of malware and malware-construction kits for cybercrime
“consumers” has been a long-running trend. Various turnkey kits that
cover remote access plus botnet plus stealth functions are available
just about anywhere. Ransomware, though very prevalent, has not yet
appeared in force in easy-to-deploy kits.
But now we have Tox–and it’s free.
Meet 'Tox': Ransomware for the Rest of Us - McAfee
“consumers” has been a long-running trend. Various turnkey kits that
cover remote access plus botnet plus stealth functions are available
just about anywhere. Ransomware, though very prevalent, has not yet
appeared in force in easy-to-deploy kits.
But now we have Tox–and it’s free.
Meet 'Tox': Ransomware for the Rest of Us - McAfee
Wednesday, May 20, 2015
Dynamoo's Blog: Malware spam: "Sky.com / Statement of Account" and...
Dynamoo's Blog: Malware spam: "Sky.com / Statement of Account" and...: These two spam runs attempt to download malware from volafile.io. To give the folks at Volafile credit, all the malware I have seen linked...
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