-
Notifications
You must be signed in to change notification settings - Fork 7
/
cryptolockerdga.cpp
237 lines (174 loc) · 5.57 KB
/
cryptolockerdga.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
#include "cryptolockerdga.h"
CryptolockerDga::CryptolockerDga()
{
this->TLDN.append("com");
this->TLDN.append("net");
this->TLDN.append("biz");
this->TLDN.append("ru");
this->TLDN.append("org");
this->TLDN.append("co.uk");
this->TLDN.append("info");
}
CryptolockerDga::~CryptolockerDga()
{
}
int CryptolockerDga::executeA(int argc, char *argv[])
{
quint64 numOfDomain;
QString outfile;
QString agStr;
quint32 DD,MM,YY;
QString dateAttack;
numOfDomain = 0;
outfile.clear();
DD = 0;
MM = 0;
YY = 0;
for (int i = 1; i < argc; i++){
agStr = agStr + argv[i] + " ";
}
agStr = agStr.replace("&", " ");
//printf("final agStr: %s\n",agStr.toStdString().c_str());
QStringList agStrL = agStr.trimmed().split(" ");
//qDebug() << "ag size:" << agStrL.size();
for (int ag = 0; ag < agStrL.size(); ag++)
{
//qDebug() << "ag:" << ag;
agStr = agStrL[ag];
agStr = agStr.trimmed();
if (agStr.isEmpty()){
continue;
}
//printf("%s\n",agStr.toStdString().c_str());
QStringList argvL = agStr.split("=");
if (argvL.size() != 2){
printf("Invalid argument for input #%d\n",ag);
return 0;
}
if (argvL.at(0) == "n"){
numOfDomain = argvL.at(1).toInt();
continue;
}
if (argvL.at(0) == "d")
{
dateAttack = argvL.at(1);
QList<QString>dt = dateAttack.trimmed().split("-");
DD = dt.at(0).toInt();
MM = dt.at(1).toInt();
YY = dt.at(2).toInt();
//qDebug() << "done date";
continue;
}
if (argvL.at(0) == "f"){
outfile = argvL.at(1);
continue;
}
}
//qDebug() << "of looping";
if (numOfDomain == 0)
{
printf("CrytoLocker: Missing or Invalid number of domain to be generated\n");
return -1;
}
if (dateAttack.trimmed().isEmpty())
{
printf("Missing or Invalid date\n");
return -1;
}
this->createDomainA(numOfDomain,DD,MM,YY,outfile);
this->createDomainB(numOfDomain,DD,MM,YY,outfile);
return 0;
}
void CryptolockerDga::createDomainA(quint16 numOfDomain, quint32 dd, quint32 mm, quint32 yy, QString of)
{
//based on https://github.com/pchaigno/dga-collection/blob/master/Cryptolocker.py
quint32 len;
QString domain;
quint32 key;
QFile fs;
if ((numOfDomain == 0) || (dd == 0) || (mm == 0) || (yy == 0)){
printf("cryptolocker dga: invalid input\n");
return;
}
if (!of.trimmed().isEmpty()){
fs.setFileName(of);
fs.open(QIODevice::WriteOnly | QIODevice::Text);
}
for (key = 0; key < numOfDomain; key++){
yy = yy + key;
dd *=65537;
mm *=65537;
yy *=65537;
len = (dd >> 3) ^ (yy >> 8) ^ (yy >> 11);
len &= 3;
len +=12;
domain.clear();
for (quint32 n = 1; n <= len; n++){
dd = ((dd << 13 & 0xFFFFFFFF) >> 19 & 0xFFFFFFFF) ^ ((dd >> 1 & 0xFFFFFFFF) << 13 & 0xFFFFFFFF) ^ (dd >> 19 & 0xFFFFFFFF);
dd &= 0xFFFFFFFF;
mm = ((mm << 2 & 0xFFFFFFFF) >> 25 & 0xFFFFFFFF) ^ ((mm >> 3 & 0xFFFFFFFF) << 7 & 0xFFFFFFFF) ^ (mm >> 25 & 0xFFFFFFFF);
mm &= 0xFFFFFFFF;
yy = ((yy << 3 & 0xFFFFFFFF) >> 11 & 0xFFFFFFFF) ^ ((yy >> 4 & 0xFFFFFFFF) << 21 & 0xFFFFFFFF) ^ (yy >> 11 & 0xFFFFFFFF);
yy &= 0xFFFFFFFF;
domain.append(QChar(97 + (yy ^ mm ^ dd) %25));
}
domain.append(".");
domain.append(this->TLDN.at(key % 7).toLocal8Bit());
if (!of.isEmpty()){
domain.append('\n');
fs.write(domain.toLocal8Bit());
}
else
printf("%s\n",domain.toStdString().c_str());
}
if (!of.isEmpty())
fs.close();
}
void CryptolockerDga::createDomainB(quint16 numOfDomain, quint32 dd, quint32 mm, quint32 yy, QString of)
{
//https://blog.fortinet.com/post/a-closer-look-at-cryptolocker-s-dga
quint32 len;
QString domain;
quint32 key;
QFile fs;
if ((numOfDomain == 0) || (dd == 0) || (mm == 0) || (yy == 0)){
printf("cryptolocker dga: invalid input\n");
return;
}
if (!of.trimmed().isEmpty()){
fs.setFileName(of);
fs.open(QIODevice::WriteOnly | QIODevice::Text);
}
for (key = 0; key < numOfDomain; key++){
quint32 dk = (dd << 0x10) ^ dd;
if (dk <=1)
dk = dd << 0x18;
quint32 mk = (mm << 0x10) ^ mm;
if (mk <=7){
mk = mm << 0x18;
if (mk <=7)
mk = !(mk);
}
quint32 yk = ((yy + key) << 0x10) ^ (yy + key);
if (yk <= 0xf)
yk = (yy + key) << 0x18;
len = (((dk ^ ((yk ^ 8 * yk ^ ((dk ^ ((mk ^ 4 * mk) >> 6)) >> 8)) >> 5)) >> 6) & 3) + 0xc;
domain.clear();
for (quint32 n = 1; n <= len; n++){
mk = ((mk ^ 4 * mk) >> 0x19) ^ 0x10 * (mk & 0xFFFFFFF8);
dk = (((dk >> 0x13) ^ ((dk >> 6) ^ (dk << 0xc))) & 0x1FFF) ^ (dk << 0xC);
yk = ((yk ^ 8 * yk) >> 0x8) ^ ((yk & 0xFFFFFFF0) << 0x11);
domain.append(QChar((dk ^ mk ^ yk) % 0x19 + 97));
}
domain.append(".");
domain.append(this->TLDN.at(key % 7).toLocal8Bit());
if (!of.isEmpty()){
domain.append('\n');
fs.write(domain.toLocal8Bit());
}
else
printf("%s\n",domain.toStdString().c_str());
}
if (!of.isEmpty())
fs.close();
}