Trojan-Dropper.Win32.Agent.bvs
前言:看到一个毒,动作非常简单,但有一点却算是有点创新精神的 ================================================================= sxs.exe样本信息: 反病毒引擎 版本 最后更新 扫描结果 AhnLab-V3 2007.9.14.0 2007.09.14 - AntiVir 7.6.0.10 2007.09.14 BDS/Graybird.GN.462336 Authentium 4.93.8 2007.09.15 - Avast 4.7.1043.0 2007.09.14 Win32:Hupigon-BQO AVG 7.5.0.485 2007.09.14 - BitDefender 7.2 2007.09.15 - CAT-QuickHeal 9.00 2007.09.14 - ClamAV 0.91.2 2007.09.15 Trojan.Downloader.Adload-130 DrWeb 4.33 2007.09.14 - eSafe 7.0.15.0 2007.09.13 - eTrust-Vet 31.1.5136 2007.09.14 - Ewido 4.0 2007.09.15 Backdoor.BlackHole.j FileAdvisor 1 2007.09.15 - Fortinet 3.11.0.0 2007.09.15 Generic.A!tr.bdr F-Prot 4.3.2.48 2007.09.15 - F-Secure 6.70.13030.0 2007.09.15 Trojan-Dropper.Win32.Agent.bvs Ikarus T3.1.1.12 2007.09.15 Trojan-PWS.Win32.Lmir Kaspersky 4.0.2.24 2007.09.15 Trojan-Dropper.Win32.Agent.bvs McAfee 5120 2007.09.14 BackDoor-CGX Microsoft 1.2803 2007.09.15 Backdoor:Win32/Blackhole.T NOD32v2 2531 2007.09.15 - Norman 5.80.02 2007.09.14 W32/Malware.APNA Panda 9.0.0.4 2007.09.14 Suspicious file Prevx1 V2 2007.09.15 Heuristic: Suspicious File Which Interferes With Vulnerable Files Like The HostsFile Rising 19.40.51.00 2007.09.15 - Sophos 4.21.0 2007.09.15 Mal/Generic-A Sunbelt 2.2.907.0 2007.09.15 Backdoor.Win32.Blackhole.T Symantec 10 2007.09.15 W32.SillyFDC TheHacker 6.2.5.060 2007.09.14 - VBA32 3.12.2.4 2007.09.15 suspected of Embedded.Backdoor.Win32.BlackHole.j VirusBuster 4.3.26:9 2007.09.14 - Webwasher-Gateway 6.0.1 2007.09.14 Trojan.Graybird.GN.462336 附加信息 File size: 505733 bytes MD5: b3bc73a0649c097457099d1d8363213d SHA1: 2d1f758d85321b8396212edd7942048fd1f03c2e packers: BINARYRES Prevx info: http://fileinfo.prevx.com/fileinfo.asp?PX5=798BC273002A9C2C8493080EEBA3E6003F867310 ================================================================= 文件改动: 创建: C:\WINDOWS\system32\sysclient.exe C:\WINDOWS\system\services.exe C:\WINDOWS\winstart.dlll (注意是dlll而不是dll) ----------------------------------------------------------------- 注册表改动: 添加: HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden Type: REG_DWORD, Length: 4, Data: 0 HKCR\.dlll Desired Access: All Access HKCR\.dlll\(Default) Type: REG_SZ, Length: 30, Data: dlll_Auto_File HKCR\dlll_Auto_File Desired Access: All Access HKCR\dlll_Auto_File\(Default) Type: REG_SZ, Length: 2, Data: HKCR\dlll_Auto_File\shell\open\command Desired Access: All Access HKCR\dlll_Auto_File Desired Access: Maximum Allowed HKCR\dlll_Auto_File\shell Desired Access: Maximum Allowed HKCR\dlll_Auto_File\shell\open Desired Access: Maximum Allowed HKCR\dlll_Auto_File\shell\open\command Desired Access: All Access HKCR\dlll_Auto_File\shell\open\command\(Default) Type: REG_SZ, Length: 68, Data: C:\WINDOWS\system\services.exe %1 HKCR\.dlll Desired Access: All Access HKCR\.dlll\(Default) Type: REG_SZ, Length: 30, Data: dlll_auto_file HKCR\dl1_auto_file\shell\open\command Desired Access: All Access HKCR\dl1_auto_file Desired Access: Maximum Allowed HKCR\dl1_auto_file\shell Desired Access: Maximum Allowed HKCR\dl1_auto_file\shell\open Desired Access: Maximum Allowed HKCR\dl1_auto_file\shell\open\command Desired Access: All Access HKCR\dl1_auto_file\shell\open\command\(Default) Type: REG_SZ, Length: 62, Data: C:\WINDOWS\system\services.exe HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run Desired Access: All Access HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\soundman Type: REG_SZ, Length: 48, Data: C:\WINDOWS\WinStar.dlll ================================================================= 创建了新的文件类型,把打开方式指向病毒主文件,在run键值里面直接写入C:\WINDOWS\WinStar.dlll; 且不论这种加载方式是否高明,这个病毒是否厉害,相比于现在许许多多的使用生成器弄出来的“标准”病毒和一些用烂了的手法来说,这个东西算是有创新精神了; 当然,制作病毒始终是犯法的,取其创新精华吧。 P.S.很久没有上传样本到VT检测,今天居然发现它有中文版了,呵呵! ================================================================= 原创作者dikex(六翼刺猬)文章地址: http://hi.baidu.com/dikex/blog/item/102881097eddec276b60fb9d.html 本文出自 51CTO.COM技术博客 |


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