PE_FUJACKS.DC-O

The infected files are detected as PE_FUJACKS.RC. It deletes a file. It drops files in folders as an infection marker. It creates registry entries to disable execution of programs related to antivirus software.

This file infector may be dropped by other malware.

It does not have any backdoor routine.

It does not have any information-stealing capability.

However, as of this writing, the said sites are inaccessible.

Arrival Details

This file infector may arrive via network shares.

It may be dropped by the following malware:

• PE_FUJACKS.RC

Installation

This file infector drops the following copies of itself into the affected system:

• %System%\drivers\Messages.exe
• %System%\drivers\svchosL.exe
• %System%\drivers\TXPlatform.exe

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

It drops the following files:

• %System Root%\z1.tmp - detected as TROJ_AGENT.APVU

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It drops the following non-malicious files:

• %System Root%\z.tmp
• %System Root%\GK.tmp

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Autostart Technique

This file infector adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Explorer = "%System%\drivers\Messages.exe"

Other System Modifications

This file infector modifies the following registry entries to hide files with Hidden attributes:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced\Folder\Hidden\
SHOWALL
CheckedValue = "0"

(Note: The default value data of the said registry entry is 1.)

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\wscsvc

File Infection

This file infector infects the following file types:

• .asp
• .htm
• .html
• .exe

Propagation

This file infector drops copies of itself in network drives such as the following:

• Cool_GameSetup.exe

It uses the following user name and password to gain access to password-protected shares:

• password
• harley
• 123456
• pussy
• mustang
• shadow
• qwerty
• baseball
• letmein
• 12345678
• 12345
• admin
• 5201314
• qq520
• 1234567
• 123456789
• 654321
• 54321
• 000000
• 11111111
• 88888888
• passwd
• database
• abc123
• sybase
• 123qwe
• server
• computer
• super
• 123asd
• ihavenopass
• godblessyou
• enable
• alpha
• 111111
• 121212
• 123123
• 1234qwer
• 123abc
• patrick
• administrator
• fuckyou
• test123
• temp123
• owner
• login
• Login
• pw123
• mypc123
• admin123
• mypass
• mypass123
• 901100
• Administrator
• Guest
• admin

Backdoor Routine

This file infector does not have any backdoor routine.

Process Termination

This file infector terminates the following processes if found running in the affected system's memory:

• safeboxTray.exe
• 360Safe.exe
• 360safebox.exe
• 360tray.exe

Information Theft

This file infector does not have any information-stealing capability.

Other Details

This file infector connects to the following possibly malicious URL:

• www.{BLOCKED}q.com.{BLOCKED}dmin5.com

However, as of this writing, the said sites are inaccessible.

NOTES:

The infected files are detected as PE_FUJACKS.RC.

It deletes the following file:

• %System%\drivers\etc\hosts

It drops the following files in folders as an infection marker:

• Desktop_1.ini
• Desktop_2.ini

It creates the following registry entries to disable execution of the following programs related to antivirus software:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
Image File Execution Options\{Application}
Debugger = "ntsd -d"

Where {Application} is the following:

• 360hotfix.exe
• 360rpt.exe
• 360safe.exe
• 360safebox.exe
• 360tray.exe
• agentsvr.exe
• apvxdwin.exe
• ast.exe
• avcenter.exe
• avengine.exe
• avgnt.exe
• avguard.exe
• avltmain.exe
• avp.exe
• avp32.exe
• avtask.exe
• bdagent.exe
• bdwizreg.exe
• boxmod.exe
• ccapp.exe
• ccenter.exe
• ccevtmgr.exe
• ccregvfy.exe
• ccsetmgr.exe
• egui.exe
• ekrn.exe
• extdb.exe
• frameworkservice.exe
• frwstub.exe
• guardfield.exe
• iparmor.exe
• kaccore.exe
• kasmain.exe
• kav32.exe
• kavstart.exe
• kavsvc.exe
• kavsvcui.exe
• kislnchr.exe
• kissvc.exe
• kmailmon.exe
• knownsvr.exe
• kpfw32.exe
• kpfwsvc.exe
• kregex.exe
• kvfw.exe
• kvmonxp.exe
• kvmonxp.kxp
• kvol.exe
• kvprescan.exe
• kvsrvxp.exe
• kvwsc.exe
• kvxp.kxp
• kwatch.exe
• livesrv.exe
• makereport.exe
• mcagent.exe
• mcdash.exe
• mcdetect.exe
• mcshield.exe
• mctskshd.exe
• mcvsescn.exe
• mcvsshld.exe
• mghtml.exe
• naprdmgr.exe
• navapsvc.exe
• navapw32.exe
• navw32.exe
• nmain.exe
• nod32.exe
• nod32krn.exe
• nod32kui.exe
• npfmntor.exe
• oasclnt.exe
• pavsrv51.exe
• pfw.exe
• psctrls.exe
• psimreal.exe
• psimsvc.exe
• qqdoctormain.exe
• ras.exe
• ravmon.exe
• ravmond.exe
• ravstub.exe
• ravtask.exe
• rfwcfg.exe
• rfwmain.exe
• rfwproxy.exe
• rfwsrv.exe
• rsagent.exe
• rsmain.exe
• rsnetsvr.exe
• rssafety.exe
• rstray.exe
• safebank.exe
• safeboxtray.exe
• scan32.exe
• scanfrm.exe
• sched.exe
• seccenter.exe
• secnotifier.exe
• SetupLD.exe
• shstat.exe
• smartup.exe
• sndsrvc.exe
• spbbcsvc.exe
• symlcsvc.exe
• tbmon.exe
• uihost.exe
• ulibcfg.exe
• updaterui.exe
• uplive.exe
• vcr32.exe
• vcrmon.exe
• vptray.exe
• vsserv.exe
• vstskmgr.exe
• vstskmgr.exe
• webproxy.exe
• xcommsvr.exe
• xnlscn.exe

It does not exploit any vulnerability.

It does not have rootkit capabilities