WebLenz Business Solutions

23/10/2018

DNS Server Spoofing Attacks

The Domain Name System (DNS) is a system that associates domain names with IP addresses. Devices that connect to the internet or other private networks rely on the DNS for resolving URLs, email addresses and other human-readable domain names into their corresponding IP addresses. In a DNS server spoofing attack, a malicious party modifies the DNS server in order to reroute a specific domain name to a different IP address. In many cases, the new IP address will be for a server that is actually controlled by the attacker and contains files infected with malware. DNS server spoofing attacks are often used to spread computer worms and viruses.

04/07/2017

04/07/2017

Alert on Cyber Attack!!!
A month after the WannaCry ransomware attack paralyzed connected systems worldwide, a new ransomware ‘Petya’ is spreading around the globe speedily.
Like WannaCry, ‘Petya’ ransomware takes over computers and demands $300, paid in Bitcoin. The malicious software spreads rapidly across an organization once a computer is infected using the EternalBlue vulnerability in Microsoft Windows (Microsoft has released a patch, but not everyone would have installed it) or through two Windows administrative tools. The malware tries one option and if it doesn’t work, it tries the next one. “It has a better mechanism for spreading itself than WannaCry”.
Petya uses three mechanisms to spread to additional hosts.
Petya scans the local system 24/7 to discover enumerate ADMINS shares on other systems, then copies itself to those hosts and executes the malware using PSEXEC. This is only possible if the infected user has the rights to write files and execute them on system hosting the share.
Petya uses the Windows Management Instrumentation Command-line (WMIC) tool to connect to hosts on the local subnet and attempts to execute itself remotely on those hosts. It can use Mimikatz to extract credentials from the infected system and use them to execute itself on the targeted host.
Petya finally attempts to use the ETERNALBLUE exploit tool against hosts on the local subnet. This will only be successful if the targeted host does not have the MS17-010 patches deployed.
The general public is advised not to panic as demonstrated during the WannaCry attacks in May, 2017. Windows systems should be patched for this vulnerability by competent personnel. Organisations should take necessary precautions because the spread of Petya using this vulnerability indicates that many organizations may still be vulnerable, despite the attention WannaCry received.
Importantly, please note and observe the following:
-Do not click on any suspicious or unknown links.
-Protect yourself when using public Wi-Fi.
-Do not visit unsafe and unreliable sites.
-Avoid clicking on links that leads to websites such as Facebook, Instagram, WhatsApp etc. Instead it is much safer to visit the site directly through their URL.
-If you receive a message or email with an attachment, try to verify authenticity of the sender before opening.
-Do not open attachments from suspicious senders.
-Store all your documents in ‘my document folder’.
-Keep your files backed up regularly.
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Nigerian Communications Commission

09/02/2017

With current attempts by fraudsters to access people’s bank accounts through text messages, emails, phone calls, etc., it is important we are armed with the knowledge of the different ways our bank accounts can be hacked by fraudsters. This will help us better discern their gimmicks, avoid their tra...

31/01/2017

With  Ozioma Ubabukoh, 07053937947 [email protected] We depend upon our smartphones. They keep us connected, informed and up to date during the hectic daily grind. For many of us, those smartphones have become more than a simple tool, so we should probably take better care of them than we do. In...

07/12/2016

“ is here You can participate now on Palmchat app and stand a chance to WIN Download Palmchat: https://t.co/GZJSwY6bw0.”

13/10/2016

SIX TIPS TO DEFEND YOUR PC AGAINST VIRUSES AND WORMS
Whether you are a system administrator of a large company or a casual user, viruses and worms can easily effect the computer system if the right precautionary measures aren't taken. The type of damage caused to the computer can vary from minor to severe with common issues related to slow performance, email spoofing, or total destruction of the PC. The most severe issues could lead to the hard disk being erased. Here are six basic rules to help safeguard the PC:

Strong security software

Install a top-rated security software package on the PC and make sure it is kept up-to-date. Any proven software package will increase the ability to fight-off attacks from spyware, hackers, and trojans, and includes many different technologies, such as anti-phishing, anti-spam, firewall, anti-spyware, and anti-virus. Plus, use the most advanced software that constantly runs in the background and will continue to scan files, email attachments, websites, or other programs while in use.

Internet service provider

Sign up to a reliable internet service provider (ISP) that uses strong anti-phishing and anti-spam technologies to prevent many of the viruses even reaching your PC.

Automatic Windows updates

Let the Windows OS update automatically to ensure the latest software is always installed on the PC. Windows often release patches which help to fix known vulnerabilities. If these aren't downloaded as soon as released, there is a greater risk of spyware or Trojans infecting the computer.

Email attachments

Avoid opening email attachments unless they are sent by someone you know and trust. Most security software programs can be set up to automatically perform a scan of attachments when received. Also, the preferred email program shouldn't be setup to automatically render graphics or open attachments.

Peer-to-peer file sharing

Use extra caution when using Peer-to-peer (P2P) technology for sharing digital media because it is easy to conceal trojans in this type of program. Similar to email only open these files when they come from a trusted source. Certain file extensions should be avoided including those that end with bat, bin, cmd, dll, lnk, scr, and vbs.

Back up regularly

Backing up the important files on the PC is certain to be beneficial in the unfortunate event of being attacked by a virus or worm. Should the PC become unresponsive or files are lost after an attack, the backup will make it easy to recover lost personal information (bank statements or tax returns), movies, music, photos, etc.

09/09/2016

“Don't let the noise of others' opinions drown out your own inner voice.” ~ Steve Jobs

05/08/2016

05/08/2016

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