Brutal Kangaroo: CIA-developed Malware for Hacking Air-Gapped Networks Covertly
It has been created for Microsoft Windows that targets "closed networks by air gap jumping using thumb drives," mainly implemented in enterprises and critical infrastructures.
The newer version was using "unknown link file vulnerability (Lachesis/RiverJack) related to the library-ms functionality of the operating system."
Thursday, June 22, 2017
Tuesday, June 20, 2017
A Decade Old Unix/Linux/BSD Root Privilege-Escalation Bug Discovered
A Decade Old Unix/Linux/BSD Root Privilege-Escalation Bug Discovered
Stack Clash
Each program running on a computer uses a special memory region called the stack. This memory region is special because it grows automatically when the program needs more stack memory. But if it grows too much and gets too close to another memory region, the program may confuse the stack with the other memory region. An attacker can exploit this confusion to overwrite the stack with the other memory region, or the other way around.
7 proof of Local exploit available
Affected systems (Confirmed):
Stack Clash
Each program running on a computer uses a special memory region called the stack. This memory region is special because it grows automatically when the program needs more stack memory. But if it grows too much and gets too close to another memory region, the program may confuse the stack with the other memory region. An attacker can exploit this confusion to overwrite the stack with the other memory region, or the other way around.
7 proof of Local exploit available
Affected systems (Confirmed):
- Sudo on Debian, Ubuntu, and CentOS
- ld.so and most SUID-root binaries on Debian, Ubuntu, Fedora, and CentOS
- Exim on Debian
- rsh on Solaris 11 and so on
- Red Hat Enterprise
Patches are available from major distributions.
Monday, June 19, 2017
New PowerPoint malware delivery technique tested by spammers - Help Net Security
New PowerPoint malware delivery technique tested by spammers - Help Net Security
A spam run detected by several security companies has attempted to deliver malware through an innovative technique: a link in a PowerPoint slideshow.
A spam run detected by several security companies has attempted to deliver malware through an innovative technique: a link in a PowerPoint slideshow.
The attack steps like this:
- A malicious Microsoft PowerPoint Open XML Slide Show (PPSX) or PowerPoint Show (PPS) is delivered attached in a bogus email (invoice, purchase order, what have you)
- Victims download the file and run it, and are faced with a single text link (or hyperlinked picture) in the file
- They are puzzled by it, and hover with the mouse’s pointer over it in order to discover where the link will take them
- That simple move triggers a mouseover action that leads to a security warning pop-up (Microsoft disables the content of suspicious files by default via Protected View)
- Users who are still curious and allow the program to be run, either by clickling the Enable All or Enable button, start a chain reaction: an embedded malicious PowerShell script is executed that downloads another downloader in the form of a JScript Encoded File (JSE), which retrieves the final payload from a C&C server (in this case, a banking Trojan).
Friday, June 16, 2017
New Fileless Ransomware with Code Injection Ability Detected in the Wild
New Fileless Ransomware with Code Injection Ability Detected in the Wild
This fileless ransomware first compromises administrator credentials by brute forcing or some other means and then uses Microsoft’s Sysinternals PsExec command-line utility to encrypt files.
Security researchers have recently discovered a new fileless ransomware, dubbed "Sorebrect," which injects malicious code into a legitimate system process (svchost.exe) on a targeted system and then self-destruct itself in order to evade detection.
Unlike traditional ransomware, Sorebrect has been designed to target enterprise's servers and endpoint. The injected code then initiates the file encryption process on the local machine and connected network shares.
Unlike traditional ransomware, Sorebrect has been designed to target enterprise's servers and endpoint. The injected code then initiates the file encryption process on the local machine and connected network shares.
This fileless ransomware first compromises administrator credentials by brute forcing or some other means and then uses Microsoft’s Sysinternals PsExec command-line utility to encrypt files.
"PsExec can enable attackers to run remotely executed commands, instead of providing and using an entire interactive login session, or manually transferring the malware into a remote machine, like in RDPs," Trend Micro says.
Saturday, April 16, 2016
WHAT WAS THE BADLOCK
Since
march 2016 there were rumors that windows & samba has a very dangerous
vulnerability and advised system admins to ready to patch as soon as possible
on 12th april when Microsoft & SAMBA has scheduled to release their
security patches .
SPECULATIONS:
Badlock
was vulnerability in the SMB & DCERPC protocol used by the SAMBA & Windows
which is overhyped by the http://badlock.org/
and compared with the Heartbleed (http://heartbleed.com/) bug found in the
openssl in terms of the impact by using a very similar template. some people
predicted that it could be as bad as MS08-067, the vulnerability
that the Conficker worm exploited.
REALITY OF THE BADLOCK:
Microsoft
& Samba release their security patches on 12th October for Badlock (CVE-2016-0128/CVE-2016-2118).
As
per Microsoft Bulletin, the vulnerability is “caused by the way the SAM and
LSAD remote protocols establish the Remote Procedure Call (RPC) channel.”
As
per Samba advisory “A man in the middle can intercept any DCERPC traffic
between a client and a server in order to impersonate the client and get the same
privileges as the authenticated user account. This is most problematic against
active directory domain controllers.”
Microsoft
rated this vulnerability important not critical. As it is an Elevation of privilege and require MITM capability.
SHOULD ATTACKER EXPLOIT BADLOCK
Exploitation
of this vulnerability is not simple and will not give the ROI due to following
reasons
Attacker
needs MITM (Middle in the man) Capability.
-
To
achieve it attacker has to already compromise the victim network /System by
other ways.
-
Attacker
would be able to compromise single system at a time.
-
Attacker
foot prints would be very large and easy to capture.
-
If
Attcker already has MITM capability attacker can use it to accomplish to achieve
more simple and valuable task rather than exploiting this bug .
CONCLUSION:
Practice
followed by the peoples behind disclosure of the Badlock has been criticized heavily
by the community since beginning & after it turnout to be a mute
vulnerability everyone felt like cheated and trolled it with Sadlock https://sadlock.org/. It’s always a good
choice to patch as soon as possible but decision cannot be driven by crating
the hype and panic. Such incidence de-focus from the real issues like more critical
& Remote Code execution vulnerabilities
Friday, January 8, 2016
HOW TO GET TRANSCRIPT FROM RGPV BHOPAL: SMART WAY
WHAT IS TRANSCRIPT
A transcript is a copy of a student's
permanent academic record, which usually means all courses taken,
all grades received, all honors received
and degrees conferred to a student. Basically
receiving all of your records from the first day of college till the college
year now
WHY TRANSCRIPT REQUIRES
If you are looking for higher studies specially in abroad or
planning to migrate then Foreign universities/immigration authority/employer
will ask you to submit the your original transcript in order to verify the equivalency
of your education with the host country
education.
PROCESS TO APPLY FOR TRANSCRIPT
In general you would expect to have a similar
process to be followed by the universities to provide the transcript to student
in a country and in this edge of technology they should have capability to do
it online.
Unfortunately this is not true and every
university has different process and different requirements of the documents.
MY JOURNEY
Being outside of india , I started to look
how to get transcript from RGPV on Google and didn’t found much help only one
thing was sure that I cannot apply it online. So as next step I contacted to
university and got a very prompt response
“Dear Student,
You
can download the Form of Transcript from the RGPV Portal (www.rgpv.ac.in) from
the option "Downloads Forms" available on the Home Page. Read the
inside instructions carefully and submit the form and if any further
issue regarding the process for applying then you can contact RGPV Student
Helpline number 0755-4004747.
Regards
Technical Support Team””
So I got the form
but no details on the documents require fees require ? so RGPV is expecting that
every student should call to get this detail . why not just add it with the
form ?
REQUIRE DOCUMENTS
After some research I found that with the
form you need original mark sheet of the semesters and any one with original mark sheet can apply for
transcript on your behalf. That was relief if you are outside of India/Bhopal.
But filling up the form was a challenge on
it’s own as I have read student experience of making many mistakes in the form
and going bake to amend themwhich wasted time & money.
So
after some more search I get to know that RGPV has a cyber café named cyber
city https://www.facebook.com/cyber00786/timeline
which makes life much easier for student.
THE PROCESS
1. So First you get a 1 copy of the filled form
and original mark sheets and take it to the RGPV. Staff is very helpful and
they will guide you to the right room number.
2. You have to submit the form & your
original marksheet for verification which take 2 -3 hours depend on the crowd .
3. Once verification get done you will get back the form & your mark
sheets with all the details on the
changes require in the form.
4. Then you go back to café get done all the
require changes. Get the required number of copies of your forms and envelops
5. Go to the UTI bank ( it’s in the campus)
get Challan ( it was 500 rs for 10 copies) please check with the university
about the fees.
6. Submit the all forms and challan on same
windows and keep the student copy of your challan in secure place you will need
it to get back your transcript which usually take two days.
TIPS
1. Reach early morning about 9 AM if you want
cyber café to fill up your form as if there is crowd then it could took you
whole day to get fill up your form .
OR
2. Call the café owner from the Facebook link
he will provide you his email id on
which you can send the scan copy of your mark sheets. And they will keep your
form ready by the time you will reach University.
3. Remember that university accept the form
for verification till 2.30 PM and bank will close by 4PM you have to manage
your timing for form submission & issuance of the challan. I was having
head to head with the time else I would have to spend another day in university.
4. If you are not living in Bhopal and want
to take your transcript with you make sure you have two to three working days arrangement to stay
in Bhopal.
Wednesday, January 6, 2016
DEATH AND RESURRECTION OF BYOB: HOW INDIAN MIDDLE CLASS HACKED TO BUY CARRY BAGS
Carry bag is a require
instrument to carry items from shop to home. For every shopper carry bag is a
necessity. Shoppes used to take them as granted and shopkeepers were more than
happy to provide such begs as convenience and help to promote their business.
Most of the big shops provided bags which have their shop name and serve as
visiting card. It was a win –win situation for both parties. But now this
situation has been changed as old saying there is no free lunch so no free
shopping bags any more. Long time ago before the popularity of the
polybags /convenient bags, even before the start of the big Mall era shoppers
used to carry their own bags to buy the groceries from the neighbors’
shopkeeper. With the help of the multinational companies and effective
advertisement this situation has been changed and now all big malls are selling
shopping bags as side product. Let’s see how this all came in to picture.
EVOLUTION
PERIOD (BEFORE 2000)
I belong to a
middleclass family and I have spent my childhood from small to large scale city
thanks to my father’s frequent transferable job. During my child hood I have
observerd that every place had very similar infrastructure. We had multiple small
shops for grocery, cloths and other requirements and one or two one stop big
shops. We used to do most of the shopping from the small shops and went to big
shops only for some big occasions. Though big shops had cheaper options but
going there for everyday stuffs wasn’t feasible.
We
always carried multiple cloth bags to shop and even we used to carry our
utensils to get liquid items e.g oil, Ghee, milk etc. As open items were
cheaper then buying packed items and we could see what quality we were getting.
Slowly
big shops introduced concept of the thin polybags so you don’t need to carry
multiple begs they can stuffs small items in to thin polybags and you just need
to stuffs them in to your carry begs. This concept quickly adopted by the small
shopkeepers as well. As this facility was free (no visible extra charge)
shoppers stop carrying multiple bags and utensils as getting liquid items in
the polybags was very convenient. I believe extra cost of the polybags somehow
shifted to the shoppers in other forms e.g. with weight of the items.
END OF BYOB
On start of the 21st century when
world was facing great recession .Various countries open there gate for
multinational companies and globalization of consumers become a new trend.
Developing countries like India got big buildings and big malls in its big
cities. These malls restricted carrying your own bags inside the mall. If you bring your
own bag (BYOB) you have to submit it and keep the token. They provide
you there on shopping bags. Once you finish your shopping they stuff your items
into big polybags so you don’t have to stuffs them into your carry beg.
Again it was a great convenience and off course cost was invisible to the
consumer. Cost of these begs were absorbed by the malls as this practice was a
win-win situation for them.
- These big
polybags works as instrument of the malls advertisement. More people will carry
their bags more advertisement for the malls
- It helps
curving the theft of the items from the mall.
- Consumer don’t
have to plan their shopping then can enter any time without worry about how
they will carry the items
These
bags were so lucrative many people started frequent visits to these mall and
started more and more shopping from there rather than small neighbor shop.
Young generation stop carrying any carry bag with them. Even if some would
carry their own bag they would be tagged as old generation.
WHY SELLING OF
SHOPPING BAGS STARTED
As use of polybags
increased World health organizations & researcher started realizing the
side effect of this phenomenon. They have noticed following prominent
issues
- These beg were
not recyclable.
- Polybags are
hazardous for animal.
- Burning them
harms environment and ozone layer.
There
were many protests to ban use of the polybags. Many movements started with no
polybags sign. Group has been formed activist started promoting to say no to
polybags and not to shop from the shops those provide polybags.
But
people already became habitual of not bringing their own bags and it wasn’t
feasible for shopkeeper to provide other type of carry beg. It was a catch 22
situation and solution came as the recyclable bags.
Due
the government pressures big shops and malls started providing recyclable bag
to consumer but soon realized that cost of these bags is much higher and due to
inflation they have to pass this cost to the consumer.
And a new business of
selling of carry bags has been started.
WHY WE BUY
CARRY BAGS
Now a days most of the
shops & malls charges extra for carry bag from 2 rs to 50 rs
depends on the shop. It is not guaranteed if these bags are rally
recyclable. We are end paying this extra money every time I wonder why ?
- They charge
- We don’t carry
our own bag
- We do impulse
shopping
The
real answer is our shopping habit. We entered into shop to check out some
stuffs and end up buying some other items. We don’t plan our shopping so we
don’t carry bags. We are spoiled buy choices we spend hours in the mall to get
right cloth/shoes/grocery for us and when cashier ask extra for carry bag we
couldn’t say no as we wouldn’t have any other option by that time. We don’t do
accounting how much money we are spending on buying these bags which we through
away. Ask yourself when you have carried same bag on your next shopping?
WHAT GOES
COMES BACK
I had multiple discussions
with intellectual people and some of them give a very strong reason on extra
charge of taking carry bag by the shops. As carry bags are hazardous to
environment extra charge would reduce the usage of these bags and there is some
rule and regulations enforce by the government to reduce the countries carbon
footprints. And it’s business so shops should earn the profit.
I
wonder what government was doing when multinational companies were spoiling the
Indian middle class with free carry bag. Wasn’t they were creating new market
to sell the unrequired bag. If government and malls are really worried about
the environment they should provide extra discount of not taking the bag from
the mall instead of charging extra or should reward in some other manner.
Shops and mall should
increase the awareness of benefit of carrying your own bag. In current scenario
we don’t see any efforts by the shops or the government.
As
responsible citizen we should bring back the BYOB (bring your own bag) trend
and say no to malls carry bag and strong no to buy them and save money &
save environment else we will be spending at least 2% of our shopping money in
these extra bags. In my opinion It will take one complete generation to change
its habit.
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