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[ANY] Little Anti-Cheat


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Ilusion9
Veteran Member
Join Date: Jun 2018
Location: Romania
Old 05-14-2020 , 15:56   Re: [ANY] Little Anti-Cheat
Reply With Quote #101

Quote:
Originally Posted by J_Tanzanite View Post
What game?
Did you play on a community made map?
What version of Lilac?
Did you have sv_cheats enabled on the server?
csgo
yes (surf_heroics_nf)
last version from this topic
no
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NeQ
Junior Member
Join Date: May 2020
Old 05-14-2020 , 16:11   Re: [ANY] Little Anti-Cheat
Reply With Quote #102

Quote:
Originally Posted by J_Tanzanite View Post
Arena 1v1 you say?
Pardon my ignorance here, as I don't play CS:GO, but isn't Arena a community made game mode?
If so, what map did you play on?
"Pardon my ignorance here, as I don't play CS:GO, but isn't Arena a community made game mode?"
Yes.

"If so, what map did you play on?"
am_redline.
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J_Tanzanite
Senior Member
Join Date: Aug 2018
Location: Norway
Old 05-14-2020 , 16:20   Re: [ANY] Little Anti-Cheat
Reply With Quote #103

Quote:
Originally Posted by Ilusion9 View Post
csgo
yes (surf_heroics_nf)
last version from this topic
no
Quote:
Originally Posted by NeQ View Post
"Pardon my ignorance here, as I don't play CS:GO, but isn't Arena a community made game mode?"
Yes.

"If so, what map did you play on?"
am_redline.
Ahh, I see what's going on here.
Seems like some community maps have it built in to set mat_fullbright on.
Usually, in normal maps that isn't done, and you have to cheat in order to set mat_fullbright to 1.
I didn't know that community maps could force change the value...

Alright, in my next version of Little Anti-Cheat 1.5.0, I will have that fixed, so it no longer checks for that ConVar.
However, it may take a while before version 1.5.0 is out, so for now, set "lilac_convar" to "0" in "cfg/sourcemod/lilac_config.cfg"
This is ofc a temporary fix while I finish version 1.5.0, which will have a fix for this.

I'll update the thread here on AM, warning people about this.
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Magic8Ball
Junior Member
Join Date: Nov 2008
Old 05-15-2020 , 12:56   Re: [ANY] Little Anti-Cheat
Reply With Quote #104

We've been using this plugin on our AWP servers for a week now and it's been wonderful. Tremendous. Thank you very much for your hard work and I'm elated to be using your plugin. It saves our admin team a great amount of time and creates a better experience for all of the players in our servers.

You can see your plugin doing a great job in our ban log here: https://mygloveworks.com/bans/

Thank you soooo much and I look forward to the official release of 1.5.0!
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Last edited by Magic8Ball; 05-15-2020 at 12:59.
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Sajmooooon
Senior Member
Join Date: Nov 2018
Location: Slovakia
Old 05-18-2020 , 12:52   Re: [ANY] Little Anti-Cheat
Reply With Quote #105

I don't know if it is bug, but sometimes this plugin have banned players in sourcebans and sometimes in banned_user.cfg.
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LittleB
AlliedModders Donor
Join Date: Nov 2011
Old 05-20-2020 , 20:25   Re: [ANY] Little Anti-Cheat
Reply With Quote #106

Just tried to load version 1.3 on my TF2 server and got the following error.

lilac.smx: Unable to load plugin (no debug string table)
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J_Tanzanite
Senior Member
Join Date: Aug 2018
Location: Norway
Old 05-20-2020 , 20:50   Re: [ANY] Little Anti-Cheat
Reply With Quote #107

Quote:
Originally Posted by LittleB View Post
Just tried to load version 1.3 on my TF2 server and got the following error.

lilac.smx: Unable to load plugin (no debug string table)
Update your SM version to 1.10 or higher.
That seems to work for everyone who has had that issue in the past. Give it a try
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LittleB
AlliedModders Donor
Join Date: Nov 2011
Old 05-20-2020 , 21:53   Re: [ANY] Little Anti-Cheat
Reply With Quote #108

Quote:
Originally Posted by J_Tanzanite View Post
Update your SM version to 1.10 or higher.
That seems to work for everyone who has had that issue in the past. Give it a try
Look's like that did the trick.Thanks.
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Spyrek
Senior Member
Join Date: Jun 2009
Old 05-24-2020 , 04:38   Re: [ANY] Little Anti-Cheat
Reply With Quote #109

Just for info. Not complaining tho ;)
Code:
was detected and banned for Bhop (Jumps Presses: 79 | Bhops: 10)
With jump binded to mouse scroll up/down.
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J_Tanzanite
Senior Member
Join Date: Aug 2018
Location: Norway
Old 05-24-2020 , 05:15   Re: [ANY] Little Anti-Cheat
Reply With Quote #110

Quote:
Originally Posted by Spyrek View Post
Just for info. Not complaining tho ;)
Code:
was detected and banned for Bhop (Jumps Presses: 79 | Bhops: 10)
With jump binded to mouse scroll up/down.
There is about a 0.01 to 0.1% chance of a false positive happening when people bind mwheeldown/up to +jump.
And this looks to be one of them, you can unban if you choose, as this ban doesn't strike me as someone cheating.
Just a normal player.

As for why I range the percentage to be there:
I recommend watching this video: https://www.youtube.com/watch?v=VBUPlhiki3s

If jump is spammed (through a macro or scroll wheel), then there is at best a 50% chance of hitting the jump button at the right time, at best.
So, the basic calculation is: (0.5^10) * 100 = 0,0976 ~ 0.1% chance of a false positive.
0.5 is the percentage (0.5 = 50%), 10 is the amount of bhops, and 100 is just so we get a nice percentage number, rather than a multiplier.

However, rarely will your input match completely the ticks, exactly how much they would match, I don't know for sure, but lets say it rounds off to be about you having a 40% chance of landing the jump at the perfect tick (Worst case scenario).
So: (0.4^10) * 100 = 0,0104 ~ 0.01% chance of a false positive from jump spamming.

So it's clearly possible to do for legit players, and getting false banned, but the chances are low, and most people don't bhop (Tho in some games, people try to bhop more than in other games).
However, I have gotten reports of cheats also spamming jump to make it seem like they are using a macro.

I still believe this ban to be invalid, so you should unban.
However, it is up to each server owner what they see as reasonable and not, and what they see as likely invalid and valid.

Btw, there is a new command in the latest version of Lilac that lets you set the ban length of each cheat detection feature.
lilac_set_ban_length, you can use this to set bhop bans to be shorter if you rather not ban players permanently.

Something I have considered is that on lower tickrates, bhoping might be easier, as you have a bigger timespan where you can time something perfectly.
Lilac was originally developed for TF2, where the tickrate is 66.
CS:GO is at 64.
So it's mainly games like L4D and L4D2 where I'm a little concerned, since the tickrate is 30.
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