Hacking on Medium
How to Protect Yourself from Ransomware?

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A rise in the number of ransomware attacks on governments, businesses, hospitals, and private individuals is being seen. It has grown into…

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hacking: security in practice
Is it possible to do this↓?

I want to modify the social networks to avoid my brain getting dumber. Since I need to use them for my job, I want to be able to filter the Instagram (example) content. This means, deleting the 🔍 and only being able to see the accounts I choose.

Also having the possibility of blocking all the content and only using the chat and the stories would be really interesting.

I have seen app blockers but never an inside-app blocker.

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hacking: security in practice
Possible new T-mobile phone # scam?

Hey guys, I'm new here but I just came across a scam and I'd like your input on it. So yesterday and today I received a text message in a group chat I was brought into that stated that my bill for the month of March has been paid(even though I'm not the one paying the phone bill). I knew this was a scam but I wanted to look into it because as I already mentioned this was in a group chat. So I ran the links through Virus Total and the report said there was no malware on the sites. I then looked into the status of these websites and they came back invalid. The next thing I did was run a background check on the number that started the group chat I was brought into today. I also checked some of the other numbers that responded with "stop" just to make sure I wasn't being fooled. The number that started the group chat came back as "unknown" and was said to have most likely been based in New York. The other numbers were real but, they could have had their T-mobile accounts compromised and had their phone numbers stolen. The only thing I noticed we all had in common was that our service provider was T-mobile or owned by T-mobile(ex. Metropcs). I went on google and found out that these kinds of scams have been happening for a while. But what makes this different(at least to me) is that in the previous scams it was never mentioned where these numbers are coming from. In this one, not only does it claim to be from T-mobile. The scam number is provided/serviced by T-mobile. I don't know if I'm overthinking this or not but I'd like some outside input. Also, one of the sites I used claims it is 90% sure the scam number is a CLEC(Competitive Local Exchange Carrier), don't know if that changes anything. Thank you for your time.

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hacking: security in practice
self signed SSL Cert found in router

so i found a self signed ssl cert trusted by our root CA in our router today. Its obviously fake, any idea what the implications of that would be, or what could be done with such a thing?

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hacking: security in practice
Curious as to how I was compromised.

Background info I try take my cybersecurity pretty strict. Just finished sec+, have complex password, 2 FA + authentication app.

Woke up to my Instagram being hacked. What I thought was very very suspicious was the attacker, had created an new gmail with my first + middle + last name. The last name was misspelled. However…. I do not advertise my middle name anywhere. Additionally, my insta account is my first initial and not my complete last name. Example if my name is John Doe I had my insta set up as J.Do. Whoever hacked my Instagram account knew my complete name? They also went as far as to create a new gmail address using my name? I had received no notifications that my original email on my insta account had be changed or that 2 FA was turned off. Additionally my username was changed. The hacker had complete access to my account for 6 hours and all they did was unfollowed one person. I am very curious as to how this is possible, I am a bit embarrassed as I am wanting to work in the cybersecurity field. Would love anyones thoughts.

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hacking: security in practice
An interview with Jim Browning, the man who scams the scammers

https://external-preview.redd.it/V2Ba_hf2DtNqU2Un7u3Dmy-s4AgLDox9MXeh9BE4ogs.jpg?width=640&crop=smart&auto=webp&s=07f1b132641b2fe6fbb034a6d933f651cc28bf5a submitted by /u/snm729
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การอัปเดตความปลอดภัย LayerZero — เมษายน 2022

สัปดาห์ที่ผ่านมาแสดงให้เราเห็นว่าไม่มีอะไรสำคัญไปกว่าความมุ่งมั่นที่จะประเมินและปรับปรุงการรักษาความปลอดภัยอย่างต่อเนื่องในพื้นที่นี้…Continue reading on Medium »
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การอัปเดตความปลอดภัย LayerZero — เมษายน 2022
https://medium.com/@ekimzimi/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%AD%E0%B8%B1%E0%B8%9B%E0%B9%80%E0%B8%94%E0%B8%95%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%9B%E0%B8%A5%E0%B8%AD%E0%B8%94%E0%B8%A0%E0%B8%B1%E0%B8%A2-layerzero-%E0%B9%80%E0%B8%A1%E0%B8%A9%E0%B8%B2%E0%B8%A2%E0%B8%99-2022-e4eb9d32094d?source=rss------bug_bounty-5

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สัปดาห์ที่ผ่านมาแสดงให้เราเห็นว่าไม่มีอะไรสำคัญไปกว่าความมุ่งมั่นที่จะประเมินและปรับปรุงการรักษาความปลอดภัยอย่างต่อเนื่องในพื้นที่นี้…Continue reading on Medium » (https://medium.com/@ekimzimi/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%AD%E0%B8%B1%E0%B8%9B%E0%B9%80%E0%B8%94%E0%B8%95%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%9B%E0%B8%A5%E0%B8%AD%E0%B8%94%E0%B8%A0%E0%B8%B1%E0%B8%A2-layerzero-%E0%B9%80%E0%B8%A1%E0%B8%A9%E0%B8%B2%E0%B8%A2%E0%B8%99-2022-e4eb9d32094d?source=rss------bug_bounty-5)

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Hacking on Medium
Chrome Needs An Update — Otherwise Crypto Attacks Are Imminent

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Millions of users have been urged to update their Google Chrome browsers after security researchers discovered a flaw that would put them…

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Hacking Articles|Raj Chandel's Blog
A Detailed Guide on Responder (LLMNR Poisoning)

IntroductionResponder is a widely used tool in penetration test scenarios and can be used for lateral movement across the network by red teamers. The tool contains many useful features like LLMNR, NT-NS and MDNS poisoning. It is used in practical scenarios for objectives like hash capture or poisoned answer forwarding supporting various AD attacks. The tool contains various built-in servers like HTTP, SMB, LDAP, DCE-RPC Auth server etc. In this article, we will cover a majority of these attacks that can be performed while being aided by responder.Table of content· LLMNR, NBT-NS, MDNS and DHCP· Responder Installation· Attack 1: LLMNR/NBT-NS Poisoning through SMB· Attack 2: LLMNR/NBT-NS Poisoning through WPAD· Responder Analyze Mode· Responder Basic Authentication Mode· Responder Downgrade NTLMv2-SSP to NTLMv2· Responder external IP poisoning· Responder Multi-Relay: Shell on a system· Responder DNS injection in DHCP response· What are these servers in responder?· Recommendations· ConclusionLLMNR is a protocol which allows name resolution without the requirement of a DNS server. It is able to provide a hostname-to-IP based off a multicast packet sent across the network asking all listening Network-Interfaces to reply if they are authoritatively known as the hostname in the query.  It does this by sending a network packet to port UDP 5355 to the multicast network address. It allows IPv4 and IPv6 hosts and supports all current and future DNS formats, types, and classes. It is the successor of NBT-NS.NBT-NS: NetBIOS name service (NBT-NS) is a Windows protocol which is used to translate NetBIOS names to IP addresses on a local network. It is analogous to what DNS does on internet. Each machine is assigned a NetBIOS name by the NBT-NS service. Works on UDP port 137. It is the predecessor of LLMNR.MDNS: Multicast DNS (mDNS) is a protocol aimed at helping with name resolution in networks. It doesn’t query a name server, rather, multicasts the queries to all the clients in a network directly. In multicast, an individual message is aimed directly at a group of recipients. When a connection between sender and recipient is made, all participants are informed of the connection between the name and IP address, and can make a corresponding entry in their mDNS cache.LLMNR/NBT-NS Poisoning: Let’s say a victim wants to connect to a shared drive \\wow so it sends the request to the DNS server. The only problem is that DNS can’t connect to \\wowas it doesn’t exist. Therefore, server replies back saying he it can’t connect the victim to \\wow. Thereafter, the victim will multicast this request to the entire network (using LLMNR) in case any particular user knows the route to the shared drive (\\wow).DHCP Poisoning: Dynamic Host Client Protocol (DHCP) is used to provide a host with its IP address, subnet mask, gateway etc. Windows uses multiple custom DHCP options like NetBIOS, WPAD etc. By poisoning th[...]

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e DHCP response, an attacker would be able to help victim pinpoint its own rogue server for any kind of authentication. In turn, compromising the credentials.Responder InstallationInitially developed by SpiderLabs and now being developed by Laurent Gaffie (lgandx), responder is a python coded tool which can be found here. The tool comes built-in Kali OS. Responder.exe (Windows version) of the same can be found here.responder -hhttps://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgMdkuUouM8mVXnU_M0aSA58AgPqfdc6ViKx1v6O-_GzFN7aUwnvm4pztXOlOG0wFsotcYjIOHon9umSJnI7NuXBsLd1MWJ9mVuPCaAt054AIIq0_-FY2HSPlmO97g-QZlyKDKupmhdsPvAuI5OirmsezAGyn8VMCU_fGm7ow5SHg7iuJNeiYAcD5zxtw/s16000/1.png Attack 1: LLMNR/NBT-NS Poisoning through SMBEssentially when a system tries to access an SMB share, it sends a request to the DNS server which then resolves the share name to the respective IP address and the requesting system can access it. However, when the provided share name doesn’t exist, the system sends out an LLMNR query to the entire network. This way, if any user(IP address) has access to that share, it can reply and provide the communication to the requestor.responder -I eth0https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8rSxYx0GVfXz6W5907NN5x_n1AOhAICepo6t5OubuU9xpih2Zo9s9m2kF2eq8vBOJOUD2VKEqASl9ZbGJTm84Cvke2lxZTpDrUc-zkf1Exs4QLiSHQQcM_7I1vEFeMbJAUr4g4OQrlo7rtdB49gv-ZUAs9hNaEjFFX9AOntC2TSCI3v0p6jL-ycw75g/s16000/3.png Now, when the victim tries to access shared drive “wow” he sees this! Wow has suddenly been made available and the poisoner asking for user credentials.hashcat -m 5600 hash.txt /usr/share/wordlists/rockyou.txthttps://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSR7vZLixbRxRQRUgE4Wli_MT1JIBNZNZf4CGLnwbodOeaqaoFpZC7G74jvyKP_nm1l7zV4awzfZwpvQDznmvseka_wmUYTSoyp-5Dpo5gJYoEG4SL1uvFEA3DpWb_ZWfj6GxpxQAMBhw9VTQpjd3Z0xYA_Q9Ev4WB1_yEAahB9oDs4lk2LjHpoHxI5g/s16000/6.png As you can see, password has now been obtained which is Password@1https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFXo7GTNv0Qkk9hryJmd2cU8caRbACms0XMYIX2xVHKSrQi9dytDxv26dABbSy8XNI1dWG[...]

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