Adversarial C2 Protocol Implemented in Zig
Complete handshake badly
+13
-7
+13
-7
src/main.zig
+13
-7
src/main.zig
···
192
192
break :blk msg_w.buffered();
193
193
};
194
194
195
-
std.debug.print("full message = {any}\n", .{full_msg});
196
-
197
195
try socket.send(full_msg);
198
196
return;
199
197
}
···
213
211
},
214
212
};
215
213
216
-
_ = udp_dest_port;
217
-
218
214
var connection_buf: [2048]u8 = undefined;
219
215
const connection_bytes = connection.toBytes(&connection_buf);
220
-
std.debug.print("connection: {any}\n", .{connection_bytes});
221
216
headers.setPayloadLen(connection_bytes.len);
222
217
223
-
const full_msg = blk: {
218
+
var full_msg = blk: {
224
219
var msg_buf: [2048]u8 = undefined;
225
220
var msg_w: Writer = .fixed(&msg_buf);
226
221
msg_w.writeAll(&headers.toBytes()) catch unreachable;
···
228
223
break :blk msg_w.buffered();
229
224
};
230
225
231
-
std.debug.print("full message = {any}\n", .{full_msg});
226
+
try socket.send(full_msg);
232
227
228
+
headers.udp.dst_port = udp_dest_port;
229
+
try init.io.sleep(.fromSeconds(3), .real);
230
+
231
+
full_msg = blk: {
232
+
var msg_buf: [2048]u8 = undefined;
233
+
var msg_w: Writer = .fixed(&msg_buf);
234
+
msg_w.writeAll(&headers.toBytes()) catch unreachable;
235
+
msg_w.writeAll(connection_bytes) catch unreachable;
236
+
break :blk msg_w.buffered();
237
+
};
233
238
try socket.send(full_msg);
239
+
234
240
return;
235
241
}
236
242