---

Signature Detection Bypass Solutions

#	Challenge	Difficulty	Technique
01	String Splitting	Easy	Runtime concatenation
02	XOR Encoding	Easy	Bitwise XOR transformation
03	Charcode Construction	Easy	ASCII integer arrays
04	String Reversal	Easy	Reversed string flip
05	Environment Variable Abuse	Medium	OS env var fragments
06	ROT13 / Caesar Cipher	Easy	Substitution cipher
07	Hex Encoding	Easy	Hex string decode
08	Format String Replace	Easy	Delimiter insertion/removal
09	Type Conversion	Medium	StringBuilder + int array
10	UTF-16LE Null Interleaving	Medium	Unicode null byte encoding
11	Null Byte Insertion	Medium	Manual null bytes
12	Unicode Homoglyph	Hard	Cyrillic lookalikes
13	Zero-Width Characters	Hard	Invisible Unicode
14	Download Cradle	Easy	Design flaw exploit

---

Non-Printable Ratio Bypass Solutions

#	Challenge	Difficulty	Technique
15	Base64 Encoding	Easy	100% printable output
16	Ratio Padding	Easy	Printable byte dilution
17	Sub-64 Size Gate	Medium	Minimum size exploit
18	Encrypted Payload	Medium	AES + Base64 combo
19	Archive Container	Easy	No-unpack bypass

---

Small Executable Bypass Solutions

#	Challenge	Difficulty	Technique
20	Size Padding	Easy	Comment padding
21	Extension Avoidance	Easy	Non-suspicious ext

---

Extension Heuristic Bypass Solutions

#	Challenge	Difficulty	Technique
22	Uncommon Extensions	Easy	Unlisted exec extensions
23	No Extension	Easy	Extensionless files
24	Double Extension	Easy	Hidden ext trick
25	RTLO Unicode	Hard	Visual filename spoofing
26	Fullwidth Dot	Hard	Unicode dot bypass
27	Trailing Dots/Spaces	Medium	NTFS normalization
28	NTFS ADS	Hard	Alternate Data Streams
29	PE Stub	Hard	No PE analysis
30	Polyglot File	Hard	Multi-format files

---

AMSI Bypass Solutions

#	Challenge	Difficulty	Technique
31	AMSI Init Failed	Medium	.NET Reflection flag
32	Memory Patch	Hard	AmsiScanBuffer overwrite
33	PowerShell Downgrade	Easy	PSv2 (pre-AMSI)
34	Base64 Encoded Command	Easy	-EncodedCommand param
35	COM Server Hijacking	Hard	HKCU COM override
36	Obfuscated Reflection	Hard	Dynamic string construction
37	CLM Escape	Hard	MSBuild/InstallUtil escape
38	Context Corruption	Medium	Null amsiContext
39	Chunked Execution	Medium	Buffer fragmentation
40	Fileless Assembly	Hard	In-memory .NET load
41	DLL Path Hijacking	Hard	Fake amsi.dll
42	WMI Event Subscription	Hard	Cross-process execution
43	ETW Patching	Hard	Telemetry blinding