Install and Run ZeroWine-Tryouts Sandbox

Install Qemu and KVM:
#cd ~
#apt-get update
#apt-get install qemu-kvm qemu
#ln -s /usr/bin/qemu-system-x86_64 /bin/qemu

Install P7zip-full
#apt-get install p7zip-full

Install ZeroWine-Tryouts:
#cd /usr/local/sbin
#wget https://master.dl.sourceforge.net/project/zerowine-tryout/zerowine-tryout/0.0.2.x/Prebuilt%20QEMU%20Image/zerowine-tryout-alpha4.1-image.7z
#7za x ./zerowine-tryout-alpha4.1-image.7z
#cd zerowine_vm/
#chmod +x ./start_img.sh

Back up the default IMG file before using ZeroWine-Tryouts:
#cp ./zerowine.img ./zerowin.img.bak

Running ZeroWine-Tryouts:
#./start_img.sh

More Information:
The default username and password of ZeroWine-Tryouts are:
root:zerowine1
malware:malware1

Basic Malware Checking - PART II - Using IDA Pro

IDA Pro's version: v 7.0

1) Go to "Options"->"General...", and check the options below:
Comments
Repeatable comments
Auto comments

2) Go to "View"->"Open subviews"->"Segments", and see if the application is packed.

3) Go to "View"->"Open subviews"->"Imports", and see if there is any risky API being used.

4) Go to "View"->"Open subviews"->"Strings", and see if there is any keyword suspicious.

Install and run WINE

Install Wine:
#dpkg --add-architecture i386
#apt-get update
#apt-get install wine
#apt-get install winetricks
#apt-get install wine32

Configure Wine:
#winecfg

Execute applications through Wine:
#wine test.exe

Basic Malware Checking - PART I

1) Change the sample's name to some other extensions which cannot be executed by OS. For example:
#mv ./test.exe ./test.ex_

2) Use ClamAV and YARA to scan the test.ex_ file.

3) Check the hash of the test.ex_ file by using the command below:
#whois -h hash.cymru.com `md5sum ./test.ex_`

4) Utilize the strings command to see if there is any suspicious string sitting in the test.ex_ file as shown below:
strings ./test.ex_

5) Leverage the peid application to check if there is any packer with the test.ex_ file.

6) Check those imported APIs within the test.ex_ file by using the Dependency Walker(http://www.dependencywalker.com/).

How to Prevent DDoS Attacks on a Cloud Server Using Open Source Software

How to Prevent DDoS Attacks on a Cloud Server Using Open Source Software: Author and Co-Founder of Pickaweb, Tony Messer is back to tell you how to Prevent DDoS Attacks on a Cloud Server Using Open Source Software.