J2ME_JIFAKE.AA
Trojan-SMS.J2ME.Jifake.e (Kaspersky)
Premium Service Abuser
Mobile devices that run J2ME or Java MIDlet
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan may be downloaded using malicious QR codes. Once the malicious QR code is scanned, the user will be redirected to a URL where the malicious file can be downloaded. It then sends text messages to premium-rate numbers; thus, the user is billed for these subscriptions.
To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.
This Trojan disguises itself as Jimm Application, a mobile client for ICQ.
This malware may send a pre-defined SMS message to certian premium rate numbers.
TECHNICAL DETAILS
94, 685 bytes
Yes
01 Oct 2011
Arrival Details
This Trojan may be downloaded from the following remote sites:
- http://{BLOCKED}5.ru/jimm2s.jar
NOTES:
It disguises itself as Jimm Application, a mobile client for ICQ.
It may send a pre-defined SMS message to the following premium rate numbers:
- 1098
- 1121
- 1161
- 1171
- 1635
- 1645
- 17012
- 17013
- 179479
- 1873
- 1874
- 1945
- 2322
- 2810
- 2895
- 3141
- 4449
- 4545
- 4565
- 5014
- 5339
- 7117
- 72170
- 7654
- 7796
- 7910
- 80888
- 83868
- 9013
- 9014
- 90645045
- 9090150
- 9090199
- 930399999
- 9915
- 9916
It sends any of the following pre-defined SMS messages:
86767609
jimm2
As a result, the user is billed for these unauthorized premium rate service subscriptions.
SOLUTION
9.200
8.468.01
01 Oct 2011
8.473.00
05 Oct 2011
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Scan your computer with your Trend Micro product to delete files detected as J2ME_JIFAKE.AA. 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.
Step 3
Trend Micro Mobile Security Solution
Trend Micro Mobile Security Personal Edition protects Android smartphones and tablets from malicious and Trojanized applications. The App Scanner is free and detects malicious and Trojanized apps as they are downloaded, while SmartSurfing blocks malicious websites using your device's Android browser.
Download and install the Trend Micro Mobile Security App via Google Play.
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