Krishnendu Paul

41 posts
•
Sweden

Fixing /etc/resolv.conf on Ubuntu 22.04 from command line

Why does /etc/resolv.conf keep changing after reboot ? Issue is systemd-resolved - on latest Ubuntu system, it is what handling resolv.conf settings. And /etc/resolv.conf actually is a symlink to /run/systemd/resolve/resolv.conf managed by systemd-resolved Yes, I know - it is painful. Once you

24 days ago • 1 min read

#VMWare ESXI 6.0 to 6.5 easy upgrade using #excli on HP Servers

When you are buying a cheap server from DC for your pet projects, those are commonly old HP servers - may have the option to preload with Vmware ESXI 6.0 . Now in present scenrio after so many attacks on vmware hosts it is not really recommended to use Vmware

4 months ago • 1 min read

Lets #Attackers Inject #Malware Into Your Organization using #MSTeams

The IDOR Vulnerability in Microsoft Teams: Lets Attackers Inject Malware Into Your Organization External Tenants in Microsoft Teams refer to organizations that have their own Microsoft tenancy and can send messages to users in other tenancies. While external tenants are generally restricted from sending files to members of other organizations,

5 months ago • 2 min read

MD5 match with #Yara #Malware #Virustotal using HASH or VT

Today faced a different problem when using Yara. Task is to find some file based on different rules and then check if it is matching with few known MD5 IOCs. Looks simple, so define the constant, then create the condition and after finding bit on the internet, found following can

5 months ago • 1 min read

Install #Wazuh 4.x on Ubuntu 22.04 all in one with single command

Surely you heard about Wazuh. Wazuh is a free and open source security platform that unifies XDR and SIEM capabilities. It protects workloads across on-premises, virtualized, containerized, and cloud-based environments. For details - visit https://wazuh.com/ . Target of this post to to deploy all services of Wazuh in a

8 months ago • 1 min read

Getting proxy from file Error cURL - (5) Unsupported proxy syntax

Today for a project, was trying to hit an endpoint URL with post request via a lit of proxy. 1st was trying with Burp Repeater , but then realise, there is not direct function exists to add 1000s of upstream proxy in a shot. So, thought of settling with good ol'

a year ago • 1 min read

How to dump original executable file from packed big sized malware binary (200 MB+)

Few days back received a malware , which is more than 800MB in size. 1st time I ever seen this big malware file. When zipped, file size is 10-12 MB, and when unzipped, the filesize is more than 800MB. So, when I tried to execute it for dynamic analysis in any

a year ago • 1 min read

VMware #Workstation 16.2.4 Installation Error on #Kali Linux - Fix and Solution

So, you are trying to install VMWare Workstation 16.2.4 on Kali Linux ? Steps looks simple. 1st download VMWare workstation latest version from following link wget https://www.vmware.com/go/getworkstation-linux Then, chmod +x VMware-Workstation-Full-16.2.4-20089737.x86_64.bundle sudo ./VMware-Workstation-Full-16.2.4-20089737.x86_64.bundle Simple

a year ago • 2 min read

[Solved] #Xiaomi 12x with #Jio VOLTE Issue

Yes, recently bought a Xiaomi 12X after waiting for all in one phone for longer period. Slight background, I am very picky about choosing a perfect hardware when choosing a mobile phone and obviously I am not super rich who can afford anything from the market. My common criteria for

a year ago • 3 min read

vmware

Install #Vmware ESXI 6.7 on Asus #MiniPC PN51-E1 with #Realtek #RTL8125 NIC

Recently received an Asustek MiniPC PN51-E1 for my home lab ( Blessing of WFH ). It is just an awesome mini monster with Ryzen 7, 64 GB 3,200 DDR4, 2 TB nvme. Plan was to create a Vmware ESXI based lab host to deploy multiple VMs. Issue started when tried to

2 years ago • 2 min read