110 lines
4.0 KiB
Markdown
110 lines
4.0 KiB
Markdown
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打包工具: ASPack(2.000)
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1. 老方法脱壳
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2. MethCallEngine
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P-Code
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3. 看起来有两关？计算serial
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```vb
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loc_40512A: var_98 = 112 'Variant
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loc_405133: var_A8 = 1564 'Variant
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loc_40513C: var_B8 = 1464 'Variant
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loc_40515A: var_17C = CVar(Len(Me.lk.Text)) 'Variant
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loc_405185: If Not((Me.lk.Text = "Ab")) Then
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loc_40518D: var_18C = 0 'Variant
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loc_4051A9: var_19C = CVar(Me.lk.Text) 'Variant
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loc_4051B0: ' Referenced from: 405246
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loc_4051C3: If CBool(Not (var_19C = vbNullString)) Then
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loc_4051D2: var_18C = (var_18C + 1) 'Variant
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loc_405224: var_1FC = (var_1FC + CVar(Asc(CStr(Left(Left(var_19C, CLng(var_18C)), 1))))) 'Variant
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loc_405242: var_19C = Right(var_19C, CLng((var_17C - var_18C))) 'Variant
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loc_405246: GoTo loc_4051B0
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loc_405249: End If
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loc_405252: If (var_1FC = CVar(Asc(CStr(Left(Left(var_19C, CLng(var_18C)), 1))))) Then
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loc_405255: End
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loc_405257: GoTo loc_40525A
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loc_40525A: ' Referenced from: 405257
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loc_40525A: End If
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loc_405290: var_108 = (((var_98 * var_A8) Xor var_B8 - var_E8) - 10) 'Variant
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loc_40529E: var_128 = (var_108 * var_1FC) 'Variant
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loc_4052D4: var_148 = (CVar(Val(Me.sh.Text)) * var_108) 'Variant
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loc_4052E1: If (var_148 = CVar(Val(Me.sh.Text))) Then
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loc_4052E4: End
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loc_4052E9: Else
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loc_4052F9: If CBool(Not (var_148 < var_128)) Then
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loc_40530F: var_168 = 11
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loc_40532C: If CBool(Not ((var_148 + var_168) > (var_128 + 11))) Then
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loc_405332: Me.Hide
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loc_405345: Homo.Show var_168, var_20C
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```
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```c#
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int result = 0; //serial
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foreach (char c in name)
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{
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result += c;
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}
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string serial = result.ToString();
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```
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4. 没了，第二关过不去
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```vb
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loc_405422: var_98 = 144 'Variant
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loc_40542B: var_A8 = 135 'Variant
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loc_405434: var_B8 = 1234 'Variant
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loc_405445: var_1AC = Me.kk.Text
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loc_405458: If (var_1AC = vbNullString) Then
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loc_40545B: End
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loc_40545D: GoTo loc_405460
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loc_405460: ' Referenced from: 40545D
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loc_405460: End If
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loc_405472: = .Text
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loc_4054C3: var_F8 = ((var_B8 Mod var_98 Xor var_A8) + (CVar(Val(var_1AC)) * 100)) 'Variant
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loc_4054E1: var_1CC = CVar(Len(Me.kk.Text)) 'Variant
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loc_40550C: var_1EC = CVar(Me.kk.Text) 'Variant
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loc_405513: Do 'loop at: 4055E3
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loc_40551F: var_1DC = (0 + 1) 'Variant
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loc_40557B: var_22C = CVar(Asc(CStr(Left(Left(CVar(Me.kk.Text), CLng(var_1DC)), 1)))) 'Variant
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loc_405592: var_23C = 57
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loc_4055A2: If CBool((var_22C < 48) Or (var_22C > var_23C)) Then
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loc_4055B2: Me.we.Caption = "Only intergers"
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loc_4055BA: Exit Sub
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loc_4055BB: End If
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loc_4055E3: Loop Until (Right(var_1EC, CLng((var_1CC - var_1DC))) = var_1A8) 'do at: 405513
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loc_405601: Call var_1FC = CDec(CVar(Me.kk.Text))
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loc_40561F: Set var_88 = MemVar_407044.sh
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loc_405653: var_168 = Left(CVar(Val(blot.sh.Text)), 3) 'Variant
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loc_405661: var_128 = (Right(Right(Right(var_1EC, CLng((var_1CC - var_1DC))), CLng((var_1CC - var_1DC))), CLng((var_1CC - var_1DC))) * var_168) 'Variant
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loc_40567F: var_178 = ((var_F8 * var_168) - 18) 'Variant
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loc_405693: If CBool(Not (var_128 < var_178)) Then
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loc_4056C0: var_1A8 = 20
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loc_4056DD: If CBool(Not ((CVar(Val(CStr(var_128))) + var_1A8) > (var_178 + 20))) Then
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loc_4056E3: Me.Hide
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loc_4056F6: Kanel.Show var_1A8, var_23C
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```
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这是给人算的？怎么看都不像是有正确serial2的样子
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```c#
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string serial = result.ToString(); //上一步算出的serial
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int v168 = int.Parse(serial[..3]);
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int v128 = int.Parse(serial2[1..]) * v168;
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int vf8 = 213 + int.Parse(serial2) * 100;
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result2 = vf8 * v168 - 18;
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//v128: serial2的值去掉最高位后乘以v168
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//result2: 213加上serial2的值乘以100，再乘以v168，减去18
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if (v128 == result2)
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{
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//Success
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}
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```
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