Zahuczky

Hey guys! This is kind a warning for everyone, having a home server/NAS with SMB enabled, and (presumably) having open ports for it for the internet. The TL;DR is, that the named ransomware, 0xxx, most likely uses some kind of exploit in SMB that let's them encrypt your files remotely, without ever running any code on your machine. So you should probably look out for that. The reason I'm posting about it here is that it's really not well documented at the moment, and I could only find a handful of discussions about it online, as sadly I've been hit with it today. (thankfully, no mission critical file was lost, as I've had backups elsewhere of everything) The only proper discussion about the virus can be found here, if you're interested: 0XXX (NAS) Ransomware (.0xxx) Support Topic - Ransomware Help & Tech Support (bleepingcomputer.com) Strangely enough, attacks have been happening for a year now, but there's really not much discussion about it online I could find. The thing that most threw me off regarding this, is that someone on that thread reported not having any open ports on their network, so it's strange they got hit with it. As I'm not very well knowledged in networking protocols, I'm not totally sure how it happened, so my main concern right now is how to defend against something like this in the future, and to know exactly what caused it, just out of curiousity. Here's some info about my setup: (yes, you might say I was really asking for it) The attack happened at 6 AM, assuming from the modification date of the files encrypted. I didn't have any other computers turned on at that moment. The main porpuse of my NAS is sharing media files over the network, like watching movies on my xbox, or accessing them from a different computer. But I also had Transmission running on it, because I use it as my main torrenting device for media files. I had the ports 20-21(ftp), 443(https) and 51413(transmission) open for the internet, mainly for remote acces porpuses. Funnily enough, I also had DMZ enabled for the NAS, so it could entirely exist outside of my routers firewall. (for ease of access porpuses) If I remember correctly(the nas is turned off at the moment, and I'm not planning to turn it back on until I have the time next week to sort everything out) SMB, FTP and Windows File Sharing was enabled on the NAS. For once again, for ease of acces porpuses I didn't even had any passwords set up for the shares, so they were wide open. As of writing this, because of the nature of the virus, I haven't found any traces of the virus on any other local machine, and right now I'm comfortable using them. But just in case, how concerned should I be about also wiping all my windows machines? To my knowledge, my NAS didn't have acces to files on my computer thankfully. So, when I get to sorting this out, what should I look out for, what should I do somehow else? General discussion about the plausible workings of the virus is welcome as well.

So yeah, I'm aware that it can take between 2-4 weeks to arrive. What ticks me is that there was no info for a while week.

I received a wizmo tracking number. (I live in Europe, more specifically Hungary) in using the aftership app to track, but I checked on different sites that can track wizmo.

Hey guys. Is it normal, that I haven't received any updates on tracking, since a week now for my order from lttstore.com? The last update is "parcel scanned in terminal" in Vancouver, and it's from the 26th.

Thanks for the feedback. I already have 8GB ram in there, and according to the specs page that's the max. Also, I would like to keep this upgrade as cheap as possible, so I don't really want to upgrade the PSU, unless it's absolutely necessary. That's why I asked, if the PSU is actually good enough for the better cpu and gpu.

Hey Guys! I got my hands on(for free) on an HP Pro 3500 Series MT prebuilt PC, without a GPU, and a Pentium CPU. (Link for specs: HP Pro 3500 Microtower PC Product Specifications | HP® Customer Support) I would like to upgrade it, to a decent little gaming machine. I'm planning on replacing the CPU to an i5-3470, and adding an RX560 4GB(one wich doesn't need a 6 ping psu cable). As it is, it has a 300W PSU, and according to this page https://outervision.com/b/6kJMYe 300W should be enough for everything. I'm just a bit concerned, if it's REALLY enough for everything. I would like to hear your opinion and recommendations about it. Also, is there anything else with these kind of prebuilts to account for, before starting upgrading?

Thank you for the answers. Of course, my first thing to do, was connecting the NetClub of my dorm, but they won't really do anything about it. Using any kind of my own AP, will result in autoban, according to them. Here's a quote from the FAQ. I'm not really sure how can they tell, in some situations. One of my friends tried sharing his wired connection from his laptop to his phone, in hotspot mode, and immeadiately got banned. I dont think his pc would do upnp, so I'm not sure how they can tell. While I was chatting with someone from the NetClub, after my notice, they advised me, that I can share my connection with Bridge mode, which doesnt involve NAT.(I can't really ask more questions about it either, because they clearly state multiple times in the FAQ, that they dont care about our gadgets. If the problem is on our end, we should fix it, since they wont. They only care about their network.) That's my only option as I see it. Maybe a VPN? I'm still not sure about that, and since I already asked questions about it, they know that I know the rules. I don't have too many shots about trying out different methods, and seeing if I get banned, since violations of these rules could get me expelled from the dormitory(which would suck a lot, since rent is about 6-7x the cost compared to the dorm).

Hey guys. I've never been to familiar with this part of networking, and after some googling i still have questions about exactly what should I do. To start it off, the wifi in my university dorm sucks in my room, especially in my bed(which is a big problem for me). The netclub of my dorm advised me, to check if my phone uses the 2.4 or the 5ghz band of the network, but there isnt really a way to check which one I'm using on my iPhone(XR), and theres even less chance of forcing one over the other. They have the same ssid and subnet, so i only see one wifi network. After some discussion, i brought up, if I could share the wired connection from my laptop to wifi in my room, to have some more coverage. NAT is forbidden in the dorm, and the network will auto ban me, even if I buy extra ip adresses for all of my devices. So here comes the part which I need help with. I was advised, to share my network with a bridge(or bridge mode on my laptop). As I understand, a bridge takes a wireless signal, and makes it wired. I would need the exact opposite. So is there any way to set my wired laptop to act as a "bridge", so i have better coverage, or should I buy a real wifi bridge? Do they work both ways? Or should I get a specific one? As I mentioned before, sharing the the wired net as wifi from my laptop, or using a router will get me banned from the network, so thats a big no no. Excuse my noobness, I'm kinda new to these kind of networking.

Hey guys. If everything goes according to plan, from September I will Study IT Engineering in university. One thing, that I will have to learn is OOP with C++ there, and I would like to catch up with it until then. Just to be clear, I don't wanna become a professional programmer until then, just want to know the basics in Visual C++. I'm not a too experienced programmer, the only programming language that I'm kinda experienced in is Freepascal. I want to find some good books, or preferably sites, where I can learn the basics of Visual C++. Can anyone recommend me some, with explanations from scratch, and training tasks?

Could you please give me an example, or like an article for this? Even if it's possible, it might be harder than what is needed on the exam.

Hey guys. I have a question. Is it possible in Freepascal, assign a variable as a filename? For example Var a:string; f:text; Begin assign(f,a); reset(f); I just had my high-school exam from advanced IT, and usually when the filename has to be a variable, they state that in the task, that if it's not possible use any name. This wasn't there this year. And to my knowledge, there's no way to use a variable as filename.

I figured out. for i:=1 to n do val(sdatum, datum); {sdatum is the string form of it and datum is another array but of integer} Thank you for your help!

And i should use val() for that right? How exactly should i do that?

Sooo, for first i should read it as i did before, with string[13], and after that, take the string apart? You look like you know what youre talking about, but I dont reall get it.

Hi guys! Last time, when i had a problem with programming I got quick and good answers here, so i thought I would share one of my other problems here. So, I have a task, which for the upper level IT High School exam. I have to read data from a txt file, into arrays. program eutazas; uses crt; var i,j,n:integer; megall:array[1..2000] of integer; datum:array[1..2000] of longint; kotojel:char; ido:array[1..2000] of string[4]; azon:array[1..2000] of longint; tipus:array[1..2000] of string[3]; lejarat:array[1..2000] of longint; szkoz:char;{szokozok beolvasasa} f:text; procedure beolvasas; var i:integer; begin assign(f,'utasadat.txt'); reset(f); for i:=1 to 2000 do readln(f,megall[i],szkoz,datum[i],kotojel,ido[i],szkoz,azon[i],szkoz,tipus[i],szkoz,lejarat[i]); close(f); {szamlalas} j:=1; repeat if azon[j]<>0 then inc(n); inc(j); until azon[j]=0; end;{beolvasas} This is(a part of) my code. 0 20190326-0700 4170861 NYB 20190404 And this is one line from the database txt file. I try to read every part of the line into different arrays. For the date and time(20190326-0700) first i used a string[13] array, but in a later task i had to use only the date part of it, so i had to make it a longint of array, with seperating the date and time. I used longint for the date part of it, a char for the '-' mark, and a string[4] for the time. But after that, it compiles, but when I try to run it I get Runtime Error 106(non-numeric value is read from a text file, and a numeric value was expected). Maybe the way i try to read it parts is messed up already. If thats the case, can anyone recommend me another way, to make it posibble. I have to use arrays, and it would be too much hassle to make new types, because the time for the exam is kinda short. Thank for any help in advance! Ps.: Oh, and sorry for the strange array names. They make sense in my language.