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On January 05 2013 03:20 Mavvie wrote:Show nested quote +On January 05 2013 02:56 skeldark wrote:On January 05 2013 02:51 Mavvie wrote:On January 04 2013 23:21 skeldark wrote:On January 04 2013 22:56 Mavvie wrote:
Does the memory scanner act similar to an external maphack?
Obviously it doesn't read map data while in game since it only looks for bonus pool/other profile data, but is it the same concept? I always wondered how these work...how do you know what memory address to read? It reads the nickname of your opponent from the sc2 memory. I dont change anything, so sc2 is unable to detect it in the frist place. Even if they detect it none of my 40k users good banned for using it. IS it against the TOS? yes but installing sc2 is against the sc2 TOS, because its written so vague. I search the memory for the oppoenent name after path. remember the adress and thats it. Address relative to the program ram offsets dont change. Oh yes I know it doesn't change anything, hence "external maphack"; the type that just reads data and doesn't change any of it. I wasn't questioning whether it's good to use, I was just curious. I do a lot of programming but was unaware; I never knew that it would be so constant, even if graphics settings are different and stuff. Is there any way for blizzard to prevent this? I thought ASLR or something similar would prevent it; it would completely deny any maphacking, but I guess it has its cons. You can not detect any memory reader. Even not maphack. the only way to do it, is to search on the computer for an process that reads memory of other processes. And this would be against the law... You can never prevent memory reading. When you can read it , windows can read it, all other process can read it. Not the program decide how the memory is handled the main system does that. And if the main system ( here windows) allowes me to read the memory of program A, there is no way for A to deny it or to detect it. Settings are a memory value not a memory structure. The program is the structure. So only a change in the program ( patch) change the address. (you could change the structure in runtime to make it harder to read but they dont do it) Would not be worth it anyways because i could counter it, and would slow the program down. Yeah sorry I was unclear; I know that it's impossible to detect reading a program's memory. I'm just surprised that the offset between the memory structures and process's memory start are constant. Is it possible to randomize the locations of the memory structures though? Like ASLR is used on the iPhone to nullify/decrease the effectiveness of various exploits that would directly change the kernel's code or something; after implementing ASLR, new exploits are harder to find and use. I would've thought that SC2 could use something similar so that the location of the map data isn't constant every time it runs...but since they haven't randomized the relative memory addresses I guess it's impossible/not worth it? Oh, just saw "You could change the structure in runtime[...]", I guess hack prevention (I'm talking about maphacks here) really is a game of cat and mouse 
It would be a lot of work with little reward.
If necessary i could search for the right position at runtime every time.
I know which values are stored next to my value (here the nickname) and if i know this ones i can search for them and search in the near for tags ect.
To prevent that they need to shift all the time all memory values around. This make the program unusable slow.
Also somewhere in the memory i find the algorithm how they shift and could undo it.
This tricks are bad.
It cost them as much time to create than a cracker to undo.
However they are part of anti-crack. Cracking games is about this kind of cat and mouse games.
When you look at the average time a crack is released after a game, you see this is a game the mouse can not win ^^
In the end every program have to run on the machine. To be able to run, the computer must be able to read it.
If the computer can read it, so do i. The only secure way is not deliver the secret information to the machine.
E.g. copy protection: Multi-player game
E,g; maphack : Dont stream the full map to the client, like lol or dota does.
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Total beside that: I read nicknames from the memory part that creates the replay.
This part is written into a file after the game, so there is no need to hide it in the first place.
EDIT:
Update
The fact that this thread is not full of new complains about crazy graphs indicates the offsets did not change this season!
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I'm having a weird problem. Before this season, I was at roughly 2000-2100 MMR. Now I'm averaging mid 1800s. Did something change? Haven't gone on any losing streaks or anything.
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On January 05 2013 03:59 skeldark wrote:
The fact that this thread is not full of new complains about crazy graphs indicates the offsets did not change this season!
On January 05 2013 04:10 Shiori wrote:
I'm having a weird problem. Before this season, I was at roughly 2000-2100 MMR. Now I'm averaging mid 1800s. Did something change? Haven't gone on any losing streaks or anything.
I take it back 
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I'm seeing really weird stuff as well. My MMR has fallen from 2400 to 1600 and I'm actually LOSING MMR when I win matches instead of gaining it. wtf is happening????
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If the results are wrong dont panic. It can be that the offsets changed.
Keep ladder with the tool on, i need the data to calculate new offsets.
The wrong results you see will be corrected automatic with next DB version!
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On January 05 2013 04:56 skeldark wrote:
If the results are wrong dont panic. It can be that the offsets changed.
Keep ladder with the tool on, i need the data to calculate new offsets.
The wrong results you see will be corrected automatic with next DB version!
Hopefully you can figure out whatever ninja shit Blizzard did. Getting really sick of them playing with us like this without any warning...
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Thanks skeldark for the informative answer, good to know! There's obviously cons to the LoL/DOTA way of doing things, mainly lag being a huge factor. You send an overseer in, but the buildings appear delayed haha.
About the offset change: I just assumed it's because I was bad LOL. I was at about 2000 MMR at the end of the season, and I'm down to about 1800 despite having positive adjusted points. But this could be because of how opponents appear more favoured because of the points reset...
Out of curiosity, how do you calculate the MMR offsets at each season start?
Edit: Crooked, did you get demoted? Or is your MMR just appearing low...I'm fairly curious.
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Worth noting is that every single friend of mine got promoted from bronze (previously biggest league) to silver on their placement match this season, and most of my sub-700 pt masters friends got demoted into diamond.
I'd be surprised if the offsets weren't changed
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yeah i see some change.
However i only have 4k games from today. Need way more to calculate accurate.
Problem is like always low leagues. They impact all leagues but i have less user in this MMR and so less information...
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On January 05 2013 05:06 Mavvie wrote:
Edit: Crooked, did you get demoted? Or is your MMR just appearing low...I'm fairly curious.
Yeah I'm amongst the demoted who were well over 1000 points masters last season. The changes are rather radical at least.
I also know that 3 ex-GMs were placed in diamond even though they're still playing people in masters who will no doubt achieve GM a 5th or 6th time in a row.
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On January 05 2013 05:22 skeldark wrote:
yeah i see some change.
However i only have 4k games from today. Need way more to calculate accurate.
Problem is like always low leagues. They impact all leagues but i have less user in this MMR and so less information...
You mentioned that the leagues were getting very far away from 20/20/20/20/18/2 spread, I imagine blizzard wanted to fix that.
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On January 05 2013 06:32 InfCereal wrote:Show nested quote +On January 05 2013 05:22 skeldark wrote:
yeah i see some change.
However i only have 4k games from today. Need way more to calculate accurate.
Problem is like always low leagues. They impact all leagues but i have less user in this MMR and so less information... You mentioned that the leagues were getting very far away from 20/20/20/20/18/2 spread, I imagine blizzard wanted to fix that.
yes thats always the reason for an offset change.
Sadly the changes are not linear. That means the player skill moves out of standard derivation.
That means any skill functions get less accurate,
nothing to do against it tho...
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My MMR graph. shows my MMR is like mid platinum, yet I got a promote to diamond after the last game on that graph(was my placement match). My MMR was in the diamond level for like 30 games, 10 games before the first game on that graph(for some reason I deleted all the data at some point). My friend had just slightly higher MMR and he got promoted too. Haven't yet played on that season other than my placement match so I don't know what league and what MMR my opponents will be.
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Still says:
Pre Results - Need more Data
Results not accurate, Need Better data 0/19
Log shows several Player and Opponent data Quality at 75%...
Programming error?
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On January 05 2013 07:06 Ogww wrote:My MMR graph. shows my MMR is like mid platinum, yet I got a promote to diamond after the last game on that graph(was my placement match). My MMR was in the diamond level for like 30 games, 10 games before the first game on that graph(for some reason I deleted all the data at some point). My friend had just slightly higher MMR and he got promoted too. Haven't yet played on that season other than my placement match so I don't know what league and what MMR my opponents will be.
Pretty sure it's because the new league offsets are unknown, causing your MMR to read lower.
Whatever it is, all will be sorted out in not too long ^^
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yes. They changed the offsets thats what he calls adjustments.
Will need some days to get enough data to calculate them.
Fastest way would be a master account that loose every game down to bronze with good data all the way down.
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My MMR graph is quite weird, when I hit Diamond MMR I got promoted to plat, and I've had weird spikes the past few days.
Maybe this will help a little? Game 27 was my placement in new season.
![[image loading]](http://i.imgur.com/YLL8j.png)
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On January 05 2013 08:07 skeldark wrote:
yes. They changed the offsets thats what he calls adjustments.
Will need some days to get enough data to calculate them.
Fastest way would be a master account that loose every game down to bronze with good data all the way down.
I can do that. I have a smurf.
URL, if you need it: http://us.battle.net/sc2/en/profile/3960115/1/xOCereal/
I'll bottom him out right now.
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On January 05 2013 08:17 InfCereal wrote:Show nested quote +On January 05 2013 08:07 skeldark wrote:
yes. They changed the offsets thats what he calls adjustments.
Will need some days to get enough data to calculate them.
Fastest way would be a master account that loose every game down to bronze with good data all the way down. I can do that. I have a smurf. URL, if you need it: http://us.battle.net/sc2/en/profile/3960115/1/xOCereal/I'll bottom him out right now.
make sure to wait long enough that the pretrigger fully runs before you leave.
Wait: some problem i did not think about.
You are master and stay if you loose but your opponent is not.
Nah damit forget it i think you get normal results = many caped in the interesting area.
But the switch games are interesting. Games where the league of opponent change between the games.
At the moment i have 20 good couples to calculate but 19 are diamond -master and 1 gold - platinum
and that out of 4k games.
I need at least 5 for each league and each server to get medium accurate offsets.
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EPT
