Removed unused requires & added a new sanity check!#215
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SpinnySpiwal wants to merge 4 commits intoprometheus-lua:masterfrom
Closed
Removed unused requires & added a new sanity check!#215SpinnySpiwal wants to merge 4 commits intoprometheus-lua:masterfrom
SpinnySpiwal wants to merge 4 commits intoprometheus-lua:masterfrom
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added 4 commits
March 8, 2026 17:33
…one from using registerArray[1] = true; (this sadly is a real thing, i dont think it can be fixed due to the way the VM is built.)
Author: SpinnySpiwal <meow@spinnyspiwal.com>
Date: Sun Mar 8 17:33:27 2026 +0000
Added a sanity check which works for all Lua versions to prevent someone from using registerArray[1] = true; (this sadly is a real thing, i dont think it can be fixed due to the way the VM is built.)
diff --git a/src/prometheus/steps/AntiTamper.lua b/src/prometheus/steps/AntiTamper.lua
index d6a71b0..d35cb52 100644
--- a/src/prometheus/steps/AntiTamper.lua
+++ b/src/prometheus/steps/AntiTamper.lua
@@ -4,39 +4,94 @@
--
-- This Script provides an Obfuscation Step, that breaks the script, when someone tries to tamper with it.
-local Step = require("prometheus.step");
-local Ast = require("prometheus.ast");
-local Scope = require("prometheus.scope");
+local Step = require("prometheus.step")
local RandomStrings = require("prometheus.randomStrings")
-local Parser = require("prometheus.parser");
-local Enums = require("prometheus.enums");
-local logger = require("logger");
+local Parser = require("prometheus.parser")
+local Enums = require("prometheus.enums")
+local logger = require("logger")
-local AntiTamper = Step:extend();
-AntiTamper.Description = "This Step Breaks your Script when it is modified. This is only effective when using the new VM.";
-AntiTamper.Name = "Anti Tamper";
+local AntiTamper = Step:extend()
+AntiTamper.Description =
+ "This Step Breaks your Script when it is modified. This is only effective when using the new VM."
+AntiTamper.Name = "Anti Tamper"
AntiTamper.SettingsDescriptor = {
- UseDebug = {
- type = "boolean",
- default = true,
- description = "Use debug library. (Recommended, however scripts will not work without debug library.)"
- }
+ UseDebug = {
+ type = "boolean",
+ default = true,
+ description = "Use debug library. (Recommended, however scripts will not work without debug library.)",
+ },
}
-function AntiTamper:init(settings)
-
+local function generateSanityCheck()
+ local sanityCheckAnswers = {}
+ local sanityPasses = math.random(1, 10)
+ for i = 1, sanityPasses do
+ sanityCheckAnswers[i] = (math.random(1, 2 ^ 24) % 2 == 1)
+ end
+ local primaryCheck = RandomStrings.randomString()
+ local codeParts = {}
+ local function addCode(fmt, ...)
+ table.insert(codeParts, string.format(fmt, ...))
+ end
+
+ local function generateAssignment(idx)
+ local index = math.min(idx, sanityPasses)
+ addCode(" valid = %s;\n", tostring(sanityCheckAnswers[index]))
+ end
+ local function generateValidation(idx)
+ local index = math.min(idx - 1, sanityPasses)
+ addCode(" if valid == %s then\n", tostring(sanityCheckAnswers[index]))
+ addCode(" else\n")
+ addCode(" while true do end\n")
+ addCode(" end\n")
+ end
+
+ addCode("do local valid = '%s';", primaryCheck)
+ addCode("for i = 0, %d do\n", sanityPasses)
+ for i = 0, sanityPasses do
+ if i == 0 then
+ addCode(" if i == 0 then\n")
+ addCode(" if valid ~= '%s' then\n", primaryCheck)
+ addCode(" while true do end\n")
+ addCode(" end\n")
+ addCode(" valid = %s;\n", tostring(sanityCheckAnswers[1]))
+ elseif i == 1 then
+ addCode(" elseif i == 1 then\n")
+ addCode(" if valid == %s then\n", tostring(sanityCheckAnswers[1]))
+ addCode(" end\n")
+ else
+ addCode(" elseif i == %d then\n", i)
+
+ --[[
+ Basically, even iterations are used to assign a new sanity check value,
+ and odd iterations are used to validate the previous sanity check value.
+ ]]
+ if i % 2 == 0 then
+ generateAssignment(i)
+ else
+ generateValidation(i)
+ end
+ end
+ end
+ addCode(" end\n")
+ addCode(" end\n")
+ addCode("do valid = true end\n")
+ return table.concat(codeParts)
end
+function AntiTamper:init(settings) end
+
function AntiTamper:apply(ast, pipeline)
- if pipeline.PrettyPrint then
- logger:warn(string.format("\"%s\" cannot be used with PrettyPrint, ignoring \"%s\"", self.Name, self.Name));
- return ast;
- end
- local code = "do local valid = true;";
- if self.UseDebug then
- local string = RandomStrings.randomString();
- code = code .. [[
+ if pipeline.PrettyPrint then
+ logger:warn(string.format('"%s" cannot be used with PrettyPrint, ignoring "%s"', self.Name, self.Name))
+ return ast
+ end
+ local code = generateSanityCheck()
+ if self.UseDebug then
+ local string = RandomStrings.randomString()
+ code = code
+ .. [[
-- Anti Beautify
local sethook = debug and debug.sethook or function() end;
local allowedLine = nil;
@@ -87,7 +142,7 @@ function AntiTamper:apply(ast, pipeline)
end)("]] .. string .. [[");
return str;
end
-
+
local traceback = getTraceback();
valid = valid and traceback:sub(1, traceback:find("\n") - 1) == "]] .. string .. [[";
local iter = traceback:gmatch(":(%d*):");
@@ -149,13 +204,13 @@ function AntiTamper:apply(ast, pipeline)
valid = valid and acc1 == acc2;
if valid then else
- repeat
+ repeat
return (function()
while true do
l1, l2 = l2, l1;
err();
end
- end)();
+ end)();
until true;
while true do
l2 = random(1, 6);
…ent someone from using registerArray[1] = true; (this sadly is a real thing, i dont think it can be fixed due to the way the VM is built.)" This reverts commit a03570f.
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Added a sanity check which works for all Lua versions to prevent someone from using registerArray[1] = true; (this sadly is a real thing, I don't think it can be fixed due to the way the VM is built.)
Why does this benefit the project? It prevents anyone going into any obfuscated file and quite literally beautifying it, looking for the loop, and looking for the first index expression you see, and say the base name was T,
you'd do
and if
UseDebugistrue, all you have to do is run the file and comment out the line of the error call.