BKDR_SWRORT.YKI
Trojan:Win32/Swrort.A (Microsoft), a variant of Win32/Rozena.PP trojan (NOD32)
Windows
Threat Type: Backdoor
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It connects to a website to send and receive information.
TECHNICAL DETAILS
14,336 bytes
EXE
No
05 Apr 2017
Arrival Details
This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Backdoor Routine
This Backdoor connects to the following websites to send and receive information:
- http://{BLOCKED}.{BLOCKED}.134.20:8443/cPdE
As of this writing, the said sites are inaccessible.
Other Details
This Backdoor does the following:
- Once connected, it attempts to download an arbitrary code and execute it on the affected system.
SOLUTION
9.850
13.320.04
05 Apr 2017
13.321.00
06 Apr 2017
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
Scan your computer with your Trend Micro product to delete files detected as BKDR_SWRORT.YKI. 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 this Knowledge Base page for more information.
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